This calculator compares broadband plans on total cost over the contract, including setup, monthly fees and any introductory discount. You enter the plans, and it shows the real cost over the term, so a low first-year price does not hide a dearer plan.
Plan A
Plan B
Total cost is the monthly price across the contract, plus any setup or modem cost, less any introductory discount. After the contract, the ongoing monthly price is what matters, so check what it reverts to. Estimate only.
For each plan the calculator multiplies the monthly price by the contract length, adds any setup or modem cost, and subtracts the total introductory discount. Comparing the two totals shows which is cheaper over the contract. A plan with a tempting discount or low monthly price can still cost more once setup fees and the full term are counted, which is exactly what this reveals.
Plan A at $89 a month over 12 months with no setup or discount is $1,068. Plan B at $79 a month is $948, plus $100 setup, less $180 of discount, about $868. Plan B is cheaper over the year despite the setup fee, thanks to the discount and lower monthly price.
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 · Privacy policy · Terms of use
Reviewed and maintained. Last reviewed 2026-06-07 and checked on a twice-monthly cycle against IRD, RBNZ and Stats NZ. How we keep data current.
© 2026 Calculate.co.nz. All rights reserved. Building free NZ calculators since 2011.