All Calculators

10 free calculators with New Zealand figures, grouped by topic. Each one runs in your browser and names the official source and date of every figure it uses.

10 calculators · figures last checked Nov 2026 · 47 more for other countries below

Most used in New Zealand

KiwiSaver Calculator New Zealand: your KiwiSaver at 65 under the 3.5% rules (4% from 2028), with employer ESCT, the government contribution, PIR tax and fees. Figures checked Nov 2026 Rent vs. Buy Calculator True 5 & 10-year comparison with opportunity cost and break-even timeline. Figures checked Nov 2026 Home Buying True Cost Calculator Closing costs, mortgage insurance, taxes, insurance, maintenance — full year-one picture. Figures checked Nov 2026 Compound Interest Calculator Project savings growth from a starting amount, monthly contributions, rate and time — see contributions vs. interest. Figures checked Nov 2026 Debt Payoff Calculator Avalanche vs. snowball with your real debts — interest saved and time to debt-free. Figures checked Nov 2026 Emergency Fund Planner Personalized target based on job stability, income type, and health. Figures checked Nov 2026

Pensions and retirement

Pension tax relief, State Pension, retiring early and how long money lasts.

Property and renting

Rent or buy, stamp duty, buying costs, Help to Buy and landlords.

Family, weddings and children

Weddings, a new baby, raising a child and paying for college.

Bill Split on Parental Leave Calculator Who pays what while one of you is on leave: real statutory leave pay (UK, Ireland, Australia, Canada, US states) split 50/50, by income, or so you both keep the same money, plus the pension gap. Figures checked Nov 2026

Saving and investing

Where to put savings, ETF exit tax and how money compounds.

Compound Interest Calculator Project savings growth from a starting amount, monthly contributions, rate and time — see contributions vs. interest. Figures checked Nov 2026

Budget, debt and everyday costs

Paying off debt, an emergency fund, a car, a pet or a trip.

Career and health

Salary, remote work, health costs and caring for a parent.

Remote Work True Cost Calculator Commute savings, home office costs, meals, clothing — your real annual net. Figures checked Nov 2026

Calculators for other countries

Built on each country’s own tax and benefit rules, so they are listed under their country rather than converted.

United States 5

United Kingdom 8

Ireland 25

Canada 3

Australia 4

Netherlands 2

Need more than a calculator?

One-time price, no subscription, 14-day refund. The calculators on this site stay free.

Moving Abroad PlannerUS$15Moving costs, a month-by-month timeline, a savings target and a checklist, with sourced figures for Australia, Canada, Ireland and the UK.

How these calculators are built

Every default figure comes from an official source (a tax authority, statistics office or central bank) or a named survey, with the date we read it.
Where the authority publishes worked examples, they run as automated tests, and a figure older than 12 months fails our build.
Calculations run in your browser; your numbers are not sent anywhere. Methodology · Editorial standards

Or browse by life stage

Starting out Growing family Building wealth Career decisions Later life

Calculated in your browser: your numbers are never sent to us Figures from official sources Methodology · Not financial advice · Report an error

Get an email when New Zealand rules change

Tax bands, allowances and benefit rates change every year. We email you when a rule our New Zealand calculators use changes, usually a few times a year. Confirm by email; unsubscribe in one click.

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