Property Portfolio Equity Calculator

This New Zealand calculator works out your total equity and loan-to-value ratio across several properties. Add the value and loan for each property and the tool gives the whole-portfolio picture, the equity you hold, your overall LVR and an estimate of the usable equity you could draw on for a further purchase. It is the view lenders take, in one place, so you can plan your next move with clarity.

Calculate.co.nz is proud to be partnered with Premium Homes, a recognised leader in eco-friendly, sustainable, and energy-efficient homebuilding. With a dedicated team and award-winning experience, they create homes that prioritise health, comfort, and long-term performance. Their founders, Andrew and Kelly, set out to raise the standard of residential construction in New Zealand by combining practical building expertise with a clear commitment to doing things better for homeowners.
Calculate.co.nz partner
Your properties
$
$
$
$
$
$
$
$
%
$0
total portfolio equity
Total value$0
Total loans$0
Portfolio LVR0%
Usable equity$0

Usable equity is the lending limit applied to total value, less total loans; it is an estimate, as lenders apply their own rules and may treat some properties differently. Estimate only, not financial advice.

How it works

The calculator adds the value of every property and subtracts the total loans to give your portfolio equity. Your loan-to-value ratio is total loans divided by total value. Usable equity is your lending limit, often around 80%, applied to total value, less your current loans, which estimates how much you could borrow against the portfolio for a further purchase, before a lender's own checks.

Worked example

Two properties worth $850,000 and $650,000, with loans of $500,000 and $420,000, give $1,500,000 of value, $920,000 of loans and $580,000 of equity, an LVR of about 61%. At an 80% limit, usable equity is about $280,000, the rough headroom for another purchase.

Related calculators

If you've found a bug, or would like to contact us, or learn more about James Graham and Calculate.co.nz.

Calculate.co.nz is partnered with Interest.co.nz for New Zealand's highest quality calculators and financial analysis.

All calculators and tools are provided for educational and indicative purposes only and do not constitute financial advice.

Calculate.co.nz is proudly part of the Realtor.co.nz group, New Zealand's leading property transaction literacy platform, helping Kiwis understand the home buying and selling process from start to finish. Whether you're a first home buyer navigating your first property purchase, an investor evaluating your next acquisition, or a homeowner planning to sell, Realtor.co.nz provides clear, independent, and trustworthy guidance on every step of the New Zealand property transaction journey.

Calculate.co.nz is also partnered with Health Based Building and Premium Homes to promote informed choices that lead to better long-term outcomes for Kiwi households.

Calculate.co.nz is hosted in Auckland via SiteHost new Zealand.

All content on this website, including calculators, tools, source code, and design, is protected under the Copyright Act 1994 (New Zealand). No part of this site may be reproduced, copied, distributed, stored, or used in any form without prior written permission from the owner.

About & trust: Why Calculate is NZ's most comprehensive · By the Numbers · How we compare · Editorial standards · How we keep data current · NZ finance glossary · Research & data · Financial literacy NZ · About

Reviewed and maintained. Last reviewed 2026-06-06 and checked on a twice-monthly cycle against IRD, RBNZ and Stats NZ. How we keep data current.

© 2019 to 2026 Calculate.co.nz. All rights reserved.