Home › Financial Calculators
This page brings together every financial calculator on Calculate.co.nz in one place, covering KiwiSaver, investing, saving, retirement planning, debt repayment, loans and small business numbers. Whether you are working out how long your KiwiSaver will last, comparing a managed fund against an ETF, building a debt snowball, projecting compound interest, or deciding whether to pay down the mortgage or invest, the right tool is listed below. Every calculator is free, built for New Zealand conditions, and uses current rates and rules for the 2026/27 year. None of them ask you to sign up or hand over personal details. Pick a calculator from the list to get a fast, clear answer, then follow the related links on each page to dig deeper. These tools are provided for education and planning, and do not constitute financial advice.
178 free calculators in this category
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.
© 2019 to 2026 Calculate.co.nz. All rights reserved.