Every page starting with R
341 pages, in alphabetical order, each with the description it carries. A page filed under its own name rather than a prefix: a suburb page sorts by the suburb, and a title beginning with NZ sorts by the word after it.
Nothing on this letter matches that. Try the full A to Z.
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Race Time Predictor
Predict your race time at any distance from a recent result, using Riegel's formula. Enter a known distance and time to estimate 5k, 10k, half marathon or marathon times.
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Housing in Raceway Park
What housing costs in Raceway Park, Hastings District: median weekly rent $435, the ownership and renting split, and household income, from the 2023 Census.
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Radians to Degrees Calculator
Convert angles from radians to degrees instantly. Enter any radian value and get the degree equivalent, gradians, and turns. Works for decimal and pi-multiple inputs.
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Radians to Revolutions Calculator
Free radians to revolutions calculator. Enter radians to get revolutions (rad / 2pi) and the equivalent in degrees, with the formula and a worked example.
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Housing in Raetihi
What housing costs in Raetihi, Ruapehu District: median weekly rent $250, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Raglan
What housing costs in Raglan, Waikato District: median weekly rent $410, the ownership and renting split, and household income, from the 2023 Census.
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RAID Calculator
Work out usable storage, space efficiency and fault tolerance for RAID 0, 1, 5, 6 and 10 arrays from your drive count and drive size.
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Rainwater Tank Size Calculator NZ
What your roof and rainfall can collect, and the tank capacity that carries your use through dry spells. For NZ homes and blocks.
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Raised Garden Bed Soil Calculator NZ
Work out how much soil or compost you need to fill a raised garden bed in New Zealand, in litres, cubic metres and bags, from the bed length, width and depth.
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Housing in Ramanui
What housing costs in Ramanui, South Taranaki District: median weekly rent $328, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Ramarama
What housing costs in Ramarama, Auckland: median weekly rent $552, the ownership and renting split, and household income, from the 2023 Census.
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Random Number Generator NZ
Free random number generator. Generate single numbers, number sets for NZ lottery, roll dice, pick random names from a list, flip a coin, and generate random sequences.
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Random Picker Calculator
Randomly select one or more winners from any list of names or items. Paste up to 10,000 entries, set how many to pick, and get fair unbiased results instantly.
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Random String Generator
Generate random strings instantly. Choose length, character sets (uppercase, lowercase, numbers, symbols), and quantity.
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Random Team Generator
Randomly assign people to teams for sport, work, or recreation. Paste up to 10,000 names, set the number of teams, and get fair random groups instantly.
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Housing in Randwick Park East
What housing costs in Randwick Park East, Auckland: median weekly rent $550, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Randwick Park West
What housing costs in Randwick Park West, Auckland: median weekly rent $500, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangatira Park
What housing costs in Rangatira Park, Taupo District: median weekly rent $500, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangaunu Harbour
What housing costs in Rangaunu Harbour, Far North District: median weekly rent $300, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangiora North East
What housing costs in Rangiora North East, Waimakariri District: median weekly rent $350, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangiora North West
What housing costs in Rangiora North West, Waimakariri District: median weekly rent $320, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangiora South East
What housing costs in Rangiora South East, Waimakariri District: median weekly rent $486, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangiora South West
What housing costs in Rangiora South West, Waimakariri District: median weekly rent $395, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangitane-Purerua
What housing costs in Rangitane-Purerua, Far North District: median weekly rent $450, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangitata
What housing costs in Rangitata, Timaru District: median weekly rent $225, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangitihi
What housing costs in Rangitihi, Far North District: median weekly rent $298, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rangiuru
What housing costs in Rangiuru, Western Bay of Plenty District: median weekly rent $300, the ownership and renting split, and household income, from the 2023 Census.
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Rate Constant (Arrhenius) Calculator
Calculate the rate constant k using the Arrhenius equation: k = A·e^(-Ea/RT). Enter activation energy, pre-exponential factor, and temperature.
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Rate Law Calculator NZ
Calculate the rate of a chemical reaction from the rate constant, reactant concentrations and their orders. See the overall reaction order. For chemical kinetics.
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Rate of Return
Simple against compound returns, annualising, real against nominal, and a term deposit versus ETF scenario. A beginner NZ guide.
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Rates and Property Running Costs Guide
Understand NZ property running costs: council rates, insurance, maintenance, landlord vs owner-occupier costs, and planning for ongoing ownership obligations.
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NZ Rates and Water Calculator 2026
Free NZ council rates calculator. Estimate your annual rates based on property value and council area.
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Rates and Water: what NZ households spend per week
What New Zealand households spend on rates and water each week, from the Stats NZ Household Economic Survey 2023, with every survey year since 2007 and what the category...
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Rates Bill 2026 Estimator
Estimate your 2026 council rates bill in New Zealand from your property's capital value, the rate in the dollar and fixed annual charges, shown per year and per week.
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Rates by Region Calculator NZ
Compare council rates on a similar property across regions in New Zealand. Enter a property value and each region's rate to see the yearly and weekly cost side by side.
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Rates Postponement Calculator NZ
See how postponing council rates builds up over time against your home equity in New Zealand.
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Rates Postponement vs Reverse Mortgage Calculator NZ
Compare postponing your council rates against drawing the same amount from a reverse mortgage in New Zealand, and see the interest each owes after a number of years.
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Rates Rebate Calculator NZ
Estimate your New Zealand rates rebate from your annual rates, household income and dependants, using the government Rates Rebate Scheme formula.
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Rates Revaluation Impact Calculator NZ
Rates depend on your value relative to the district, so a higher revaluation does not always mean higher rates. See your likely change. NZ.
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Ratio Calculator
Free ratio calculator. Simplify a ratio to its lowest terms, or solve a proportion to find a missing value in an equivalent ratio.
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Ratio Splitter Calculator NZ 2026
Split any amount or quantity by a ratio. Enter a total and a ratio like 2:3:5 to see each share instantly, for money, ingredients, mixes, shared costs and more.
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Rational Root Test Calculator
Free rational root test calculator. Enter the leading coefficient and constant term to list the candidate rational roots, plus or minus p over q.
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Rationalise the Denominator Calculator
Free rationalise the denominator calculator. Enter a numerator and a radicand to rewrite a over root b with a rational denominator, in simplest form.
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Ratios and percentages questions, answered
Percentage change and percentage of a number, ratios and proportions, scale, averages and rounding.
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Housing in Raumanga
What housing costs in Raumanga, Whangarei District: median weekly rent $350, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Raumati Beach East
What housing costs in Raumati Beach East, Kapiti Coast District: median weekly rent $480, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Raumati Beach West
What housing costs in Raumati Beach West, Kapiti Coast District: median weekly rent $524, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Raumati South
What housing costs in Raumati South, Kapiti Coast District: median weekly rent $500, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Raureka
What housing costs in Raureka, Hastings District: median weekly rent $350, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Ravensbourne-St Leonards
What housing costs in Ravensbourne-St Leonards, Dunedin City: median weekly rent $432, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Ravenswood
What housing costs in Ravenswood, Waimakariri District: median weekly rent $570, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rawhiti
What housing costs in Rawhiti, Christchurch City: median weekly rent $400, the ownership and renting split, and household income, from the 2023 Census.
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Ray White Commission Calculator
Estimate Ray White real estate commission on a New Zealand property sale. Free calculator using Ray White's tiered structure, with GST. Indicative only, verify with the...
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RC & RL Filter Cutoff Frequency Calculator NZ
Calculate the cutoff frequency of an RC or RL filter from the resistance and capacitance or inductance. Find the -3dB point and time constant for your filter design.
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RC Time Constant Calculator
Tau from resistance and capacitance, the charging voltage at 1 to 5 tau, time to any percentage, and a full charge and discharge table.
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Reactance Calculator
Calculate inductive reactance (XL) and capacitive reactance (XC) from frequency, inductance and capacitance. Free reactance calculator with the formulas.
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Reactivation MRR Calculator
Calculate reactivation MRR recovered from returning customers using reactivated customer count and average revenue per account. See monthly and annualised figures.
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Reading a LIM Report
What a LIM report is and how to read it when buying a property in New Zealand: what it shows, the red flags to check, and how it differs from a builder's report.
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Reading Age Calculator NZ 2026
Paste any text to estimate its reading age and grade level using the Flesch-Kincaid readability formula, plus a Flesch reading ease score.
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Reading Time Calculator NZ
Estimate how long it takes to read a piece of text from the word count and your reading speed, for study, speeches and presentations.
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Reading Your Bank Statement
How to read a New Zealand bank statement: balances, transactions, fees and interest, and how to spot errors and fraud so nothing slips past you.
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Reading Your Employment Agreement
How to read a New Zealand employment agreement before you sign: your right to a written agreement, time to seek advice, and the key clauses to check.
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Real Estate Agent Commission Split Calculator NZ 2026/27
What a salesperson actually keeps: gross commission, agency split, desk costs, then GST, income tax and ACC to take-home. NZ 2026/27.
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Real Estate Commission Calculator NZ 2026
Enter the sale price and commission rate for total fees, GST on commission and net proceeds after agent costs. Any NZ sale.
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Real Estate Commission Comparison Calculator NZ 2026
Enter one sale price and see what every major New Zealand real estate agency would charge, grouped by whether the agency publishes its fees.
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Real Estate Commission in New Zealand
Complete guide to NZ real estate commission: how it works, typical rates, negotiation strategies, costs to sellers, and alternatives to traditional agents.
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Real Estate Commission Negotiation Calculator NZ 2026
Free NZ commission negotiation calculator. See what shaving 0.1%, 0.25%, 0.5%, 0.75% or 1% off your agent's commission saves in real dollars including GST.
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Real Hourly Wage Calculator NZ
Discover what you really earn per hour once commuting, preparation time and work costs are counted.
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Real Return Calculator NZ
Work out your investment return after tax and inflation in New Zealand, the figure that actually matters.
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Rebalancing Threshold Calculator NZ 2026/27
Calendar against threshold rebalancing: how long drift takes to pass a band, the trades each policy needs, and what you accept in exchange.
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Rebar Weight Calculator NZ
Calculate the weight of reinforcing steel (rebar) from the bar diameter, length and number of bars. Get the weight per metre, per bar and the total for your order.
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Recognising and Avoiding Scams
The common scams in NZ from phishing to payment redirection, the universal red flags, and what to do if you have been caught.
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Recognising Emotional Spending
What emotional spending is, the feelings and triggers behind it, how it shows up in New Zealand households, and practical ways to spot and slow it down.
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Recovering Unpaid Wages
How to recover unpaid wages, final pay and holiday pay in New Zealand using written records, free MBIE mediation, the Labour Inspectorate and the Authority.
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Recreation and culture: what NZ households spend per week
What New Zealand households really spend on recreation and culture each week, from the Stats NZ Household Economic Survey 2023, broken down by region, household size...
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Recreation Equipment Resales: what NZ households spend per week
What New Zealand households spend on recreation equipment resales each week, from the Stats NZ Household Economic Survey 2023, with every survey year since 2007 and what...
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Recruitment Agency Fee vs In House Calculator NZ 2026
An agency fee against hiring in-house: advertising, HR and manager hours, and the break-even agency percentage. NZ.
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Rectangle Calculator
Free rectangle calculator. Enter length, width and a unit to get the area, perimeter and diagonal of a rectangle. Formula and worked example included.
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Rectangular Box (Cuboid) Calculator
Free rectangular box (cuboid) calculator. Enter length, width and height to get volume, surface area, space diagonal, face diagonals, and total edge length instantly.
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Rectangular Pyramid Volume Calculator
Free rectangular pyramid volume calculator. Enter the base length, width and height to get the volume, with the one third base times height formula and a worked example.
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Rectangular to Polar Calculator
Free rectangular to polar calculator. Enter x and y to get the radius r = sqrt(x^2 + y^2) and angle theta = atan2(y, x), in degrees and radians.
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Recurrence Relation Calculator
Compute terms of a second-order linear recurrence a(n) = p a(n-1) + q a(n-2) from two starting values, including Fibonacci. Free recurrence relation calculator.
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Housing in Red Beach East
What housing costs in Red Beach East, Auckland: median weekly rent $560, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Red Beach West
What housing costs in Red Beach West, Auckland: median weekly rent $600, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Red Hill
What housing costs in Red Hill, Auckland: median weekly rent $450, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Redcastle
What housing costs in Redcastle, Auckland: median weekly rent $650, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Redcliffs
What housing costs in Redcliffs, Christchurch City: median weekly rent $470, the ownership and renting split, and household income, from the 2023 Census.
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Redeployment Rights NZ: What You Can Accept, Refuse and Still Be Paid
Reconfirmation, redeployment and a comparable role mean different things. What each is, what refusing costs, and how section 88 removes the payout.
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Redeployment vs Redundancy Calculator NZ 2026
Compare a redeployment offer with the redundancy payout: the package after tax, the weeks of unemployment it covers, and which path leaves you better off.
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Redundancy Checklist NZ: Everything to Do in Your Last Fortnight
The fortnight between the notice and the last day as a checklist: final pay, the tax on it, insurance, Work and Income, KiwiSaver, references and access.
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NZ Redundancy Entitlement Calculator 2026
Free NZ redundancy calculator. Work out your final pay, notice period, annual leave payout, and indicative redundancy compensation.
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Redundancy Insurance NZ: What Exists, What It Pays, Who Cannot Claim
No standalone redundancy insurance exists in NZ. What the income protection and mortgage add-ons pay, and why a restructure you knew about is excluded.
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Redundancy on a Work Visa NZ: What Happens to Your AEWV and Next Steps
An AEWV is tied to the employer, the job and the location. What happens when the role goes, the Job Change process, the money, and who to call first.
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Redundancy Pay and What To Do Next
Redundancy without panic: tax treatment, cashflow stabilisation, a budget reset, insurance, KiwiSaver and finding the next role. NZ.
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Redundancy Pay Calculator
Work out a New Zealand redundancy payment from your contract. Enter weekly pay, years of service and weeks per year to see the total taxable payout.
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Redundancy Rights and Money Guide
Understand redundancy in New Zealand: what redundancy is, your rights and notice, how any payout is taxed, and how to manage the financial gap while you find new work.
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Redundancy Runway Calculator NZ
Work out how long your redundancy payout plus savings would last if you lost your job in New Zealand.
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Redundancy to Contracting NZ: The Gateway Test and Your Day Rate
Your old job as a contract has a five limb legal test since 2026 and a rate that must cover leave, KiwiSaver, ACC and the gaps. Both worked through here.
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Redundancy vs New Job Calculator NZ
Compare staying for a redundancy payout against starting a new role sooner in New Zealand. Weigh the after-tax payout against the pay you would earn by moving on early.
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Housing in Redwood East
What housing costs in Redwood East, Christchurch City: median weekly rent $400, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Redwood North
What housing costs in Redwood North, Christchurch City: median weekly rent $430, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Redwood West
What housing costs in Redwood West, Christchurch City: median weekly rent $189, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Redwoodtown East
What housing costs in Redwoodtown East, Marlborough District: median weekly rent $420, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Redwoodtown West
What housing costs in Redwoodtown West, Marlborough District: median weekly rent $400, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Reefton
What housing costs in Reefton, Buller District: median weekly rent $250, the ownership and renting split, and household income, from the 2023 Census.
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Reference Angle Calculator
Find the reference angle and quadrant for any angle in degrees or radians. Input 150 degrees returns reference angle 30 degrees, quadrant 2. Handles any angle.
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NZ Reference Data - Tax Rates, Wages, Interest Rates, Public Holidays
Quick reference tables for NZ tax rates, minimum wage, public holidays, interest rates, KiwiSaver thresholds, and more.
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Refinancing and Mortgage Restructuring Guide
When to revisit your mortgage, aligning structure with life stage, fixed against flexible, and long-term ownership planning. NZ.
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Refixing vs Refinancing Your Mortgage
Refix with your bank or refinance to a new lender: cash contributions and clawbacks, break fees, and how to decide. NZ.
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Refixing Your Mortgage
What mortgage refixing is in New Zealand, what happens when a fixed term ends, how to choose a new term, the rollover trap, and how to refix to suit your situation.
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Refractive Index Calculator
Calculate refractive index from the speed of light in a medium, or apply Snell's law to find refraction angles.
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Refractive Index Calculator NZ
Calculate the refractive index of a material from the speed of light within it. Enter the speed in the medium to find n, and see how much light is slowed.
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Refunds and Insurance Claims: what NZ households spend per week
What New Zealand households spend on refunds and insurance claims each week, from the Stats NZ Household Economic Survey 2023, with every survey year since 2007 and what...
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Housing in Regents Park
What housing costs in Regents Park, Christchurch City: median weekly rent $600, the ownership and renting split, and household income, from the 2023 Census.
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Regex Escape Tool NZ
Escape text so it can be used literally inside a regular expression. Paste a string to escape its special regex characters, ready to match exactly. Runs in your browser.
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Regex Tester NZ
Test a regular expression against your text online. Enter a pattern and flags to see every match and how many there are, instantly and entirely in your browser.
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Regular Decagon Area Calculator
Free regular decagon area calculator. Enter the side length to get the area of a regular decagon (ten equal sides), with the formula and a worked example.
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Regular Decagon Perimeter Calculator
Free regular decagon perimeter calculator. Enter the side length to get the perimeter of a regular decagon (ten equal sides), with the formula and a worked example.
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Regular Heptagon Area Calculator
Free regular heptagon area calculator. Enter the side length to get the area of a regular heptagon (seven equal sides), with the formula and a worked example.
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Regular Heptagon Perimeter Calculator
Free regular heptagon perimeter calculator. Enter the side length to get the perimeter of a regular heptagon (seven equal sides), with the formula and a worked example.
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Regular Hexagon Area Calculator
Free regular hexagon area calculator. Enter the side length to get the area of a regular hexagon (six equal sides), with the formula and a worked example.
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Regular Hexagon Perimeter Calculator
Free regular hexagon perimeter calculator. Enter the side length to get the perimeter of a regular hexagon (six equal sides), with the formula and a worked example.
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Regular Nonagon Area Calculator
Free regular nonagon area calculator. Enter the side length to get the area of a regular nonagon (nine equal sides), with the formula and a worked example.
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Regular Nonagon Perimeter Calculator
Free regular nonagon perimeter calculator. Enter the side length to get the perimeter of a regular nonagon (nine equal sides), with the formula and a worked example.
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Regular Octagon Area Calculator
Free regular octagon area calculator. Enter the side length to get the area of a regular octagon (eight equal sides), with the formula and a worked example.
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Regular Octagon Perimeter Calculator
Free regular octagon perimeter calculator. Enter the side length to get the perimeter of a regular octagon (eight equal sides), with the formula and a worked example.
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Regular Pentagon Area Calculator
Free regular pentagon area calculator. Enter the side length to get the area of a regular pentagon (five equal sides), with the formula and a worked example.
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Regular Pentagon Perimeter Calculator
Free regular pentagon perimeter calculator. Enter the side length to get the perimeter of a regular pentagon (five equal sides), with the formula and a worked example.
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Regular Polygon Calculator
Calculate area, perimeter, interior angle, and apothem of any regular polygon from 3 to 12 sides. Enter the number of sides and side length for instant results.
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Regular vs Lump Sum Calculator NZ
A lump sum now against drip-feeding it in: the projected outcome of each, weighing higher expected return against easing in. NZ.
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Regular vs Lump Sum Investing Calculator NZ 2026/27
Free NZ calculator comparing investing a lump sum at once against drip feeding it over months.
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Relative Error Calculator
Free relative error calculator. Enter the measured and true values to get the relative error as a fraction and a percentage, plus the absolute error.
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Relocation Packages NZ
Relocation payments in NZ are exempt only if they reimburse actual eligible expenses from the IRD list. Why a lump sum allowance is taxable in full.
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Remainder Calculator
Find the remainder and quotient of integer division instantly. Enter a dividend and divisor to get the quotient, remainder, the division equation, and the modulo result.
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Remainder Theorem Calculator
Free remainder theorem calculator. Enter polynomial coefficients and a value r to get P(r), the remainder when dividing by (x - r), and whether (x - r) is a factor.
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Housing in Remuera Abbotts Park
What housing costs in Remuera Abbotts Park, Auckland: median weekly rent $690, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Remuera East
What housing costs in Remuera East, Auckland: median weekly rent $750, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Remuera North
What housing costs in Remuera North, Auckland: median weekly rent $760, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Remuera South
What housing costs in Remuera South, Auckland: median weekly rent $700, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Remuera Waiata
What housing costs in Remuera Waiata, Auckland: median weekly rent $796, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Remuera Waiatarua
What housing costs in Remuera Waiatarua, Auckland: median weekly rent $710, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Remuera Waitaramoa
What housing costs in Remuera Waitaramoa, Auckland: median weekly rent $700, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Remuera West
What housing costs in Remuera West, Auckland: median weekly rent $710, the ownership and renting split, and household income, from the 2023 Census.
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Renewal Forecast Calculator
Forecast your renewed revenue from the contract value up for renewal and an expected renewal rate. See the forecast renewed value and the at-risk amount.
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Renewal Rate Calculator
Calculate your renewal rate from contracts renewed and contracts up for renewal. See the percentage of customers or value that renewed over the period.
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Renovate vs Move House Calculator NZ
Renovating against selling and moving up: renovation cost weighed against transaction costs and the price of the upgrade. NZ.
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Renovation Cost Per Room Calculator NZ 2026
Choose the room, set the quality level and a contingency for a realistic kitchen, bathroom, bedroom or living room budget. NZ.
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Renovation Value Uplift Calculator NZ
Compare a renovation cost against the value it is expected to add to your home in New Zealand.
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Rent Affordability Calculator NZ 2026
Conservative to aggressive weekly rent targets from your gross income, plus utilities and move-in savings estimates. NZ.
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Rent Arrears Calculator NZ
Work out exactly how much rent is owed over a period of missed or partial payments in New Zealand.
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Rent Bond and Move-in Cost Calculator NZ
Work out the upfront cost of moving into a rental in New Zealand: bond of up to 4 weeks, rent in advance of up to 2 weeks.
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Rent Increase Calculator NZ
Free NZ rent increase calculator. Work out a new rent from a percentage rise, or the percentage and dollar change between an old and new rent.
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Rent Increases: The Rules and Your Options
New Zealand rent increase rules: once every 12 months, 60 days written notice, fixed-term versus periodic, bond and rent-in-advance limits, and how to challenge.
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Rent vs Buy Break-Even Calculator NZ
Find the number of years of ownership at which buying beats renting in New Zealand, once costs and likely house price growth are weighed against rent.
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NZ Rent vs Buy Calculator
Find out whether buying or renting makes more financial sense for your situation in New Zealand.
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Rent: what NZ households spend per week
What New Zealand households spend on rent each week, from the Stats NZ Household Economic Survey 2023, with every survey year since 2007 and what the category covers.
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NZ Rental Chattels Depreciation Calculator
Free NZ chattels depreciation calculator for rental properties. 16 common chattel types with IRD rates. Diminishing value vs straight-line methods.
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Rental Interest Deductibility
How interest on money borrowed for a residential rental is now 100% deductible again, how loss ring-fencing works, and what interest you can and cannot claim.
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Rental Interest Deductibility Calculator
Work out how much of your residential rental interest is tax deductible after the phase back. See deductible interest and the tax saving for each income year.
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NZ Rental Property Cash Flow Calculator
Free NZ rental property cash flow calculator with 100% interest deductibility restored from April 2025.
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Rental Yield & Investment Guide
Master rental yield calculations in NZ: gross vs net yield, ROI analysis, expense tracking, and strategies for profitable property investment.
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Rental Yield and Investment Calculator NZ 2026
This rental yield and investment calculator will help you quantify the yearly return on investment and viability of your rental property.
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Renting vs Buying in New Zealand
Complete guide to renting vs buying property in NZ: costs, flexibility, wealth building, risks, and life stage considerations for informed housing decisions.
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Renting vs Owning: How the Split Shifted, 2013 to 2023
The share of NZ households renting against owning across three Censuses, by region: 34.0 per cent renting in 2023 against 35.2 in 2013, from 2,210 areas.
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Renting well
Twelve steps through renting in New Zealand: affordability, bond, tenancy types, healthy homes, rent increases and getting your bond back at the end.
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Renting With Pets: Pet Bonds and Your Rights
New Zealand pet rules from 1 December 2025: pet bonds up to 2 weeks rent, landlord consent, the 21-day response rule, pet damage liability and assistance dogs.
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Renting, flatting and landlords questions, answered
Rent affordability and flatmates, bonds, rental yield, healthy homes, boarders and the sums a landlord runs.
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Rentvest vs Buy Own Home Calculator NZ
Compare rentvesting (renting where you live and buying an investment) against buying your own home in New Zealand, weighing capital growth against the yearly cash cost.
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Rentvesting Calculator NZ
Compare rentvesting, renting where you live while owning an investment property, against buying a home to live in.
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Rentvesting Explained Guide
Understand rentvesting in New Zealand: renting where you want to live while owning an investment property elsewhere, the trade-offs, the cash flow, and who it suits.
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Housing in Renwick
What housing costs in Renwick, Marlborough District: median weekly rent $430, the ownership and renting split, and household income, from the 2023 Census.
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Repatriation Cost Calculator NZ 2026/27
The round-trip cost of money into a foreign investment and back: both conversions, brokerage at each end, and the cost per year held. NZ.
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Replace Your Salary Revenue Calculator NZ 2026/27
Free NZ calculator. Work out the revenue your business must make for you to earn what your job pays, allowing for gross margin, overheads, ACC and KiwiSaver.
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Replacing an Insurance Policy
A new life, health or income policy means new underwriting. Anything that has happened since the old policy was written becomes a new exclusion.
- Research and NZ Reference Data
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Residual Calculator
Free residual calculator. Enter an observed value and a predicted value to get the residual, its square, and the percent error.
-
Resistivity Calculator
Calculate the resistance of a wire from its resistivity, length and cross-sectional area, or find the resistivity. Free resistivity calculator with material presets.
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Resistor Colour Code Calculator
Decode 4-band resistor colour codes to get the resistance value in ohms, tolerance percentage, and the minimum and maximum resistance range.
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Resistor Parallel & Series Calculator NZ
Calculate the total resistance of resistors in series and in parallel. Paste your resistor values in ohms to get both the series sum and the parallel resistance.
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Resistor Power Rating Calculator NZ
Calculate the power a resistor dissipates from its resistance and the current through it, and the power rating you should choose with a safety margin.
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Responsible Lending Protections
The duties NZ lenders must follow, the protections you have as a borrower, and what to do if a lender fails them.
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Rest and Meal Breaks at Work
Your minimum rest and meal break rights in New Zealand: the exact paid rest and unpaid meal breaks by hours worked, and the other rights no job can remove.
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Restaurant Meals and Takeaways: what NZ households spend per week
What New Zealand households spend on restaurant meals and takeaways each week, from the Stats NZ Household Economic Survey 2023, with every survey year since 2007 and...
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Housing in Resthill
What housing costs in Resthill, Hamilton City: median weekly rent $486, the ownership and renting split, and household income, from the 2023 Census.
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Restructuring Consultation NZ: What Your Employer Must Do First
What a restructure consultation must include under the Employment Relations Act, how long you get, what to ask for, and the signs the decision was already made.
-
Retaining Wall Block Calculator NZ
Work out how many retaining wall blocks you need in New Zealand from the wall length and height and the block face size, for keystone, besser and concrete blocks.
-
Retaining Wall Calculator NZ
Free NZ retaining wall calculator. Enter the wall length and height and the block size to work out how many blocks and rows you need.
-
Retire Early vs Work Longer Calculator NZ
Compare retiring now against working a few more years in New Zealand. See how extra contributions, growth and fewer drawdown years change how long your savings last.
-
Retirement Bucket Strategy Calculator NZ
Split your retirement savings into cash, income and growth buckets in New Zealand. See how much to hold in each based on your spending and the years each bucket covers.
-
Retirement Calculator NZ 2026
Your nest egg at any target age, modelling savings, KiwiSaver contributions, returns and inflation. Free NZ retirement calculator.
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Retirement Date Calculator NZ 2026/27
Free NZ retirement date calculator. See the estimated age and year you could retire, based on your KiwiSaver balance, contributions, target income and NZ Super.
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Retirement Drawdown Explained
How to turn retirement savings into income in New Zealand: drawdown methods, making your money last, sequence and inflation risk, and a practical approach.
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Retirement Glide Path Calculator NZ 2026/27
Static, declining and rising allocations tested against a bad start, and what the insurance costs when no downturn arrives. NZ.
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Retirement Healthcare Cost Estimator NZ
Estimate your lifetime healthcare and aged care costs in retirement in New Zealand, allowing for inflation on yearly medical costs and the cost of residential care.
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Retirement Income Gap Calculator NZ 2026/27
The annual gap between your target retirement income and what NZ Super plus a safe drawdown will actually pay. Free NZ calculator.
-
Retirement Number Calculator NZ 2026/27
Free NZ retirement number calculator. Enter your target annual income and see the nest egg you need on top of NZ Super, using a safe withdrawal rate you can adjust.
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Retirement planning questions, answered
How long savings last, what an income in retirement takes, drawdown rates and the gap between a plan and a number.
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Retirement Savings Shortfall Calculator NZ 2026/27
Project your KiwiSaver to retirement, compare it against your target, and see the monthly top-up that closes the gap. NZ.
-
Retirement Village Living and ORAs
The occupation right agreement, deferred management fees, what you do and do not own, and the questions to ask before moving in. NZ.
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Retirement Village vs Stay Calculator NZ
Compare the cost of a retirement village occupation right against staying in the family home in New Zealand.
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Retirement Withdrawal Sequencing Calculator NZ 2026/27
Why drawdown order matters less in NZ than overseas advice suggests, and why checking your PIR after retiring is worth far more.
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Retirement: How Long Will My Money Last Calculator NZ
Work out how many years your retirement savings will last in New Zealand, based on your pot, the annual amount you draw, and the return on the money still invested.
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Retiring in New Zealand
Eleven steps from what NZ Super pays through to aged care and your will, each paired with a New Zealand calculator that turns it into your own numbers.
-
Retraining as an Adult
Fees Free moved to the final year in 2025 and 2026 is the last year it can be claimed. The real cost of retraining is forgone income, not fees.
-
Return on Assets (ROA) Calculator
Calculate return on assets (ROA) from net income and total assets. Measure how efficiently your business turns its assets into profit, shown as a percentage.
-
Return on Capital Employed (ROCE) Calculator
Work out return on capital employed from EBIT, total assets and current liabilities. See your ROCE percentage and capital employed instantly for any NZ business.
-
Return on Equity (ROE) Calculator
Calculate return on equity (ROE) from net income and shareholder equity. Measure how much profit your business earns on every dollar owners have invested.
-
Return on Investment (ROI) Calculator
Calculate return on investment percentage, total ROI amount, and annual yield for any asset.
-
Return to Work Worth It Calculator NZ
Weigh a parent's net pay from returning to work against childcare and commuting costs in New Zealand.
-
Revenue Churn Calculator
Calculate your revenue churn rate from churned and contraction MRR against your starting MRR. See the monthly and annualised rate of recurring revenue lost.
-
Revenue per Employee Calculator
Work out revenue per employee from total revenue and headcount. A simple productivity benchmark to compare teams, periods and competitors.
-
Revenue Recognition Calculator
Calculate straight line revenue recognised to date and remaining from a contract value, term months and months elapsed. A clear SaaS accounting tool for NZ.
-
Reverse GST Calculator NZ 2026
Free reverse GST calculator for New Zealand. Extract the 15% GST content from any GST-inclusive total using the official IRD 3/23 fraction method.
-
Reverse Mortgage Calculator NZ 2026
How a reverse mortgage compounds: projected loan balance, remaining equity and LVR at 5, 10, 15 and 20 years. Free NZ calculator.
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Reverse Mortgages NZ
How reverse mortgages work: the compounding interest effect, the no negative equity guarantee, alternatives, and equity erosion over decades.
-
Reverse Tip Calculator NZ 2026
Work backwards from a total bill to find the pre-tip amount, the tip included and the tip percentage. Split the total per person too.
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Reviewing Subscriptions and Recurring Payments
How to find and review the subscriptions and recurring payments draining your account in New Zealand, decide what to keep, and cancel the rest without losing track.
-
Revolving Credit Calculator NZ
See how a revolving credit mortgage facility can cut interest by parking your income and savings against the loan in New Zealand.
-
Reynolds Number Calculator
Re for pipe or channel flow, the regime (laminar, transitional or turbulent) and the critical velocity, from fluid and geometry.
-
RGB / HSL Converter
Convert an RGB colour to HSL and hex instantly. Enter red, green and blue values to see hue, saturation, lightness and the hex code, all in your browser.
-
Rhombus Calculator
Calculate the area, diagonals, height, and perimeter of a rhombus. Enter side length and one angle to get all measurements including both diagonal lengths instantly.
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Housing in Riccarton East
What housing costs in Riccarton East, Christchurch City: median weekly rent $486, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riccarton Racecourse
What housing costs in Riccarton Racecourse, Christchurch City: median weekly rent $460, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riccarton South
What housing costs in Riccarton South, Christchurch City: median weekly rent $420, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riccarton West
What housing costs in Riccarton West, Christchurch City: median weekly rent $420, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Richmond (Invercargill City)
What housing costs in Richmond (Invercargill City), Invercargill City: median weekly rent $350, the ownership and renting split, and household income, from the 2023...
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Housing in Richmond Central (Tasman District)
What housing costs in Richmond Central (Tasman District), Tasman District: median weekly rent $450, the ownership and renting split, and household income, from the 2023...
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Housing in Richmond Downs-Wardville
What housing costs in Richmond Downs-Wardville, Matamata-Piako District: median weekly rent $282, the ownership and renting split, and household income, from the 2023...
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Housing in Richmond Heights
What housing costs in Richmond Heights, Taupo District: median weekly rent $450, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Richmond North (Christchurch City)
What housing costs in Richmond North (Christchurch City), Christchurch City: median weekly rent $390, the ownership and renting split, and household income, from the...
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Housing in Richmond South (Christchurch City)
What housing costs in Richmond South (Christchurch City), Christchurch City: median weekly rent $360, the ownership and renting split, and household income, from the...
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Housing in Richmond South (Tasman District)
What housing costs in Richmond South (Tasman District), Tasman District: median weekly rent $550, the ownership and renting split, and household income, from the 2023...
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Housing in Richmond West (Tasman District)
What housing costs in Richmond West (Tasman District), Tasman District: median weekly rent $600, the ownership and renting split, and household income, from the 2023...
-
Rideshare and Delivery Driver Tax Calculator NZ 2026/27
Uber and delivery driving: income tax, the ACC levy, the 15% GST flat-rate credit, and your kilometre and phone deductions. NZ.
-
Riemann Sum Calculator
Calculate left, right, and midpoint Riemann sums for any function over an interval. Returns all three approximations plus the exact midpoint sum for comparison.
-
Right Angle Triangle Calculator
Enter any two sides of a right-angle triangle: 3 and 4 give a hypotenuse of 5, angles of 36.87 and 53.13 degrees, and an area of 6. Pythagoras and trig, worked.
-
Ring Size Converter
Convert ring sizes between NZ/UK/AU letters, US numbers, diameter and circumference in mm. Free ring size converter to find your size from a measurement.
-
The Risk of Payday Lending
Why payday loans are so expensive, how the debt spiral works, the protections that exist, and the safer alternatives. NZ.
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Risk vs Return Fundamentals Guide
Master risk and return relationship in NZ: understand investment risk types, volatility vs loss, diversification, time horizons, and make smarter financial decisions.
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Risk vs Uncertainty
NZ guide to risk vs uncertainty: measurable risk, true uncertainty, markets, property example, income risk, protection strategies, contractor scenario, checklist.
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Housing in Riverdale
What housing costs in Riverdale, Gisborne District: median weekly rent $370, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riverhead
What housing costs in Riverhead, Auckland: median weekly rent $600, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riverlands
What housing costs in Riverlands, Marlborough District: median weekly rent $500, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riverlea
What housing costs in Riverlea, Hamilton City: median weekly rent $500, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riversdale-Islington
What housing costs in Riversdale-Islington, Marlborough District: median weekly rent $380, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Riversdale-Piano Flat
What housing costs in Riversdale-Piano Flat, Southland District: median weekly rent $180, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riverside
What housing costs in Riverside, Whangarei District: median weekly rent $430, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riverstone Terraces
What housing costs in Riverstone Terraces, Upper Hutt City: median weekly rent $740, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riverton
What housing costs in Riverton, Southland District: median weekly rent $304, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Riverview
What housing costs in Riverview, Far North District: median weekly rent $520, the ownership and renting split, and household income, from the 2023 Census.
-
RLC Resonant Frequency Calculator
Resonant frequency from inductance and capacitance, angular frequency, and the Q factor when resistance is given.
-
Road Trip Cost Calculator NZ 2026
Plan the cost of a New Zealand road trip. Add fuel, Cook Strait ferry and accommodation to see the total and the cost per person, so everyone can split it fairly.
-
Road User Charges Explained Guide
Understand road user charges (RUC) in New Zealand: why diesel and electric vehicles pay them, how distance pre-payment works.
-
NZ Road User Charges Rates 2026
Every NZ road user charges rate per 1,000 km: $76 light diesel and EV, $38 plug-in petrol hybrid, plus the full NZTA table for heavy, trailer and crane types.
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Housing in Rockdale
What housing costs in Rockdale, Invercargill City: median weekly rent $308, the ownership and renting split, and household income, from the 2023 Census.
-
ROI Guide
Learn how to calculate and use ROI to evaluate investments, compare opportunities, and make better financial decisions for business and personal investments.
-
Housing in Rolleston Central
What housing costs in Rolleston Central, Selwyn District: median weekly rent $540, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rolleston North Central
What housing costs in Rolleston North Central, Selwyn District: median weekly rent $540, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rolleston North East
What housing costs in Rolleston North East, Selwyn District: median weekly rent $570, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rolleston South Central
What housing costs in Rolleston South Central, Selwyn District: median weekly rent $560, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rolleston South East
What housing costs in Rolleston South East, Selwyn District: median weekly rent $570, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rolleston South West
What housing costs in Rolleston South West, Selwyn District: median weekly rent $570, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rolleston Tauwharekākaho
What housing costs in Rolleston Tauwharekākaho, Selwyn District: median weekly rent $550, the ownership and renting split, and household income, from the 2023 Census.
-
Roman Numeral Converter
Free Roman numeral converter. Convert numbers to Roman numerals and Roman numerals back to numbers, with the rules explained.
-
Housing in Rongomai East
What housing costs in Rongomai East, Auckland: median weekly rent $442, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rongomai West
What housing costs in Rongomai West, Auckland: median weekly rent $300, the ownership and renting split, and household income, from the 2023 Census.
-
Roof Pitch Calculator
Free roof pitch calculator. Enter the rise and run to get the roof pitch angle in degrees, the pitch ratio, and the rafter length.
-
Roof Water Catchment Calculator NZ 2026
Roof footprint, annual rainfall and collection efficiency: the litres your roof collects per year, month and day. NZ.
-
Room Heat Pump Sizing Calculator NZ
Estimate the heat pump size in kW your room needs in New Zealand. Enter the room dimensions, insulation and climate to get a recommended heating capacity and model size.
-
Housing in Rooseville Park
What housing costs in Rooseville Park, Auckland: median weekly rent $530, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rosa Birch Park
What housing costs in Rosa Birch Park, Auckland: median weekly rent $516, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rosedale-Hargest
What housing costs in Rosedale-Hargest, Invercargill City: median weekly rent $430, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rosehill
What housing costs in Rosehill, Auckland: median weekly rent $510, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Roseneath
What housing costs in Roseneath, Wellington City: median weekly rent $700, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Roseneath-Sawyers Bay
What housing costs in Roseneath-Sawyers Bay, Dunedin City: median weekly rent $300, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Roslyn (Dunedin City)
What housing costs in Roslyn (Dunedin City), Dunedin City: median weekly rent $450, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Roslyn (Palmerston North City)
What housing costs in Roslyn (Palmerston North City), Palmerston North City: median weekly rent $390, the ownership and renting split, and household income, from the...
-
Roster Cost Calculator NZ 2026
Cost a weekly staff roster in New Zealand: hours by day, penal rates for weekends and nights, employer KiwiSaver and ACC.
-
Housing in Rothesay Bay
What housing costs in Rothesay Bay, Auckland: median weekly rent $698, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rotoiti-Rotoehu
What housing costs in Rotoiti-Rotoehu, Rotorua District: median weekly rent $300, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rotokauri
What housing costs in Rotokauri, Waikato District: median weekly rent $442, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rotongata
What housing costs in Rotongata, Waipa District: median weekly rent $300, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rotoorangi
What housing costs in Rotoorangi, Waipa District: median weekly rent $300, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rotorua Central
What housing costs in Rotorua Central, Rotorua District: median weekly rent $410, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rototuna East
What housing costs in Rototuna East, Hamilton City: median weekly rent $600, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rototuna North
What housing costs in Rototuna North, Hamilton City: median weekly rent $630, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rototuna South East
What housing costs in Rototuna South East, Hamilton City: median weekly rent $600, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rototuna South West
What housing costs in Rototuna South West, Hamilton City: median weekly rent $620, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rototuna West
What housing costs in Rototuna West, Hamilton City: median weekly rent $615, the ownership and renting split, and household income, from the 2023 Census.
-
Round-Up Apps and Saving Gimmicks
What round-ups really save in a year, why a monthly fee can take 15 percent of it, and the three-line test that separates a real gain from a rearrangement.
-
Rounding Calculator
Round any number to a set number of decimal places, or to the nearest integer, 10, 100, or 1000.
-
Housing in Rowandale East
What housing costs in Rowandale East, Auckland: median weekly rent $530, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rowandale West
What housing costs in Rowandale West, Auckland: median weekly rent $500, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Royal Heights North
What housing costs in Royal Heights North, Auckland: median weekly rent $520, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Royal Heights South
What housing costs in Royal Heights South, Auckland: median weekly rent $488, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Royal Oak (Palmerston North City)
What housing costs in Royal Oak (Palmerston North City), Palmerston North City: median weekly rent $600, the ownership and renting split, and household income, from the...
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Housing in Royal Oak East (Auckland)
What housing costs in Royal Oak East (Auckland), Auckland: median weekly rent $530, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Royal Oak West (Auckland)
What housing costs in Royal Oak West (Auckland), Auckland: median weekly rent $650, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Royal Terrace
What housing costs in Royal Terrace, Dunedin City: median weekly rent $440, the ownership and renting split, and household income, from the 2023 Census.
-
RPM Calculator
Calculate RPM from vehicle speed and wheel diameter, or motor RPM from frequency and pole count. Returns RPM, rad/s, and surface speed in metres per second.
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Housing in Ruahine
What housing costs in Ruahine, Palmerston North City: median weekly rent $450, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Ruakura
What housing costs in Ruakura, Hamilton City: median weekly rent $500, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Ruakākā
What housing costs in Ruakākā, Whangarei District: median weekly rent $460, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Ruamahanga
What housing costs in Ruamahanga, Palmerston North City: median weekly rent $444, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Ruatōria-Raukumara
What housing costs in Ruatōria-Raukumara, Gisborne District: median weekly rent $149, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Ruby Bay
What housing costs in Ruby Bay, Tasman District: median weekly rent $394, the ownership and renting split, and household income, from the 2023 Census.
-
NZ RUC Calculator 2026
RUC for a diesel, EV or plug-in hybrid: $76 or $38 per 1,000 km, plus the $12.44 fee on every licence. See your yearly cost and what bigger blocks save.
-
RUC Refund Calculator NZ
Free NZ RUC refund calculator. Estimate the road user charges refund you can claim from NZTA for distance driven off public roads (farm, private land, off-road).
-
RUC vs Petrol Cost Calculator NZ
Compare NZ road tax: RUC for an EV or diesel ($76/1000km) or PHEV ($38/1000km) versus the petrol excise a petrol car pays (about 70c/L).
-
Rule of 40 Calculator
Calculate the Rule of 40 for your SaaS business by adding your revenue growth rate and profit margin. See whether you clear the 40 percent benchmark investors look for.
-
Rule of 72 Calculator
Free Rule of 72 calculator. Enter an interest rate to see how many years it takes to double your money, or enter the years to find the rate you need.
-
Rule of Three Calculator
Solve a proportion with the rule of three: find the unknown fourth value from three known ones, direct or inverse. Free rule of three calculator with the method.
-
Housing in Runciman
What housing costs in Runciman, Auckland: median weekly rent $616, the ownership and renting split, and household income, from the 2023 Census.
-
Running a business by the numbers
Fifteen steps from cashflow against profit to margins, EBIT, EBITDA, liquidity, leverage, hiring cost and what to pay yourself, with a calculator at every step.
-
Running a business questions, answered
Margins and break even, cash flow and runway, pricing, subscription revenue, customer value and the true cost of an employee.
-
Running a Club or Society
Societies that did not re-register were removed on 6 April 2026. What that means for your committee, how restoration works until 2032, and the duties that now apply.
-
Running Calorie Calculator NZ
Calculate kilojoules and calories burned running. Enter distance or duration, your pace and weight. Uses the proven VO2-based formula for accurate results.
-
Running Pace Calculator
Calculate running pace, finish time, or distance. Enter any two values to find the third. Supports km and miles.
-
Running Record Calculator
Total words, errors and self-corrections give the accuracy rate, error and self-correction ratios and the reading level, in seconds.
-
Running Split Time Calculator NZ
Work out the pace per kilometre and speed you need to hit a target finish time over a given distance, for races and training runs.
-
Running Training Pace Calculator
Calculate your running training paces for all five heart rate zones. Enter a recent race result or target pace to get personalised zone 2, tempo, and VO2 max paces.
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Housing in Russell
What housing costs in Russell, Far North District: median weekly rent $330, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Russell Forest-Rawhiti
What housing costs in Russell Forest-Rawhiti, Far North District: median weekly rent $250, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Russell Peninsula
What housing costs in Russell Peninsula, Far North District: median weekly rent $320, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Russley
What housing costs in Russley, Christchurch City: median weekly rent $470, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rutherford
What housing costs in Rutherford, Nelson City: median weekly rent $450, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rutherglen-Camerons
What housing costs in Rutherglen-Camerons, Grey District: median weekly rent $350, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rutland
What housing costs in Rutland, Christchurch City: median weekly rent $442, the ownership and renting split, and household income, from the 2023 Census.
-
RWT and PIR Explained
How resident withholding tax and prescribed investor rates work in New Zealand: tax on bank interest, the PIR for PIE funds, and how to get your rate right.
-
NZ RWT and PIR Rates 2026/27
Match your RWT rate to your income tax rate: 10.5%, 17.5%, 30%, 33% or 39%, or 45% with no IRD number. The PIE Prescribed Investor Rate is capped at 28%.
-
RWT and PIR: Tax on Interest and Investments
RWT on interest and dividends, choosing your rate, the prescribed investor rate for PIE funds, and the 28% PIR cap. For NZ savers.
-
RWT Calculator NZ
Work out the resident withholding tax deducted from your bank interest in New Zealand and the net interest you receive.
-
RWT on Interest Calculator
Work out resident withholding tax on your interest income. Enter gross interest and your RWT rate to see the tax withheld and the net interest you receive in NZ.
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Housing in Rākaia
What housing costs in Rākaia, Ashburton District: median weekly rent $350, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rānui Domain
What housing costs in Rānui Domain, Auckland: median weekly rent $488, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rānui Heights
What housing costs in Rānui Heights, Porirua City: median weekly rent $430, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rānui North
What housing costs in Rānui North, Auckland: median weekly rent $484, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rānui South East
What housing costs in Rānui South East, Auckland: median weekly rent $538, the ownership and renting split, and household income, from the 2023 Census.
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Housing in Rānui South West
What housing costs in Rānui South West, Auckland: median weekly rent $490, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rūnanga
What housing costs in Rūnanga, Grey District: median weekly rent $250, the ownership and renting split, and household income, from the 2023 Census.
-
Housing in Rūāwai-Matakohe
What housing costs in Rūāwai-Matakohe, Kaipara District: median weekly rent $250, the ownership and renting split, and household income, from the 2023 Census.
Listed from the site's own index of its pages, rebuilt whenever pages change. Last reviewed 2026-09-06. See also every question the site answers, the finance glossary and the guides.