Free NZ calculators for money, property, business, and everyday decisions
Fast, simple calculators built for New Zealanders, freelancers, landlords, home buyers, and small businesses.
All Calculators
GST Calculator
Add or remove 15% GST from any amount. Quick and accurate for NZ businesses.
Mortgage Calculator
Estimate weekly, fortnightly, or monthly mortgage repayments and total interest paid.
Loan Calculator
Calculate repayments for personal, car, or business loans in New Zealand.
Rental Yield
Calculate gross and net rental yield for NZ investment properties.
Profit Margin
Calculate profit margin, markup percentage, and required selling price.
Compound Interest
See how savings and investments grow over time with compound interest.
Percentage
Four common percentage calculations — quick and easy.
Hourly Rate
Convert your hourly rate to weekly, monthly, and annual gross income.
Invoice Due Date
Calculate payment due dates based on invoice date and payment terms.
Money
Calculators for loans, savings, interest, and percentages.
Property
Calculators for mortgages and rental yield.
Business
Calculators for GST, profit margins, hourly rates, and invoicing.
GST Calculator
Add or remove 15% GST from any amount. Quick and accurate for NZ businesses.
Profit Margin
Calculate profit margin, markup percentage, and required selling price.
Hourly Rate
Convert your hourly rate to weekly, monthly, and annual gross income.
Invoice Due Date
Calculate payment due dates based on invoice date and payment terms.
Everyday
Handy calculators for everyday percentage and interest calculations.
Why use NZ Calculator Hub?
Free to use
All calculators are completely free, no hidden costs.
No sign-up required
No accounts, no emails, just calculate.
Mobile-friendly
Works perfectly on phone, tablet, and desktop.
Simple formulas
Clear, transparent calculations you can verify.
Built for NZ
Designed for common New Zealand use cases.
Estimates only
Transparent about what these calculators do and do not do.
Calculators on this site provide estimates for general informational purposes only. They are not financial, tax, legal, accounting, or investment advice. Always verify results and consult a qualified professional.