All Calculators

Browse all free calculators for money, property, business, and everyday decisions.

Add or remove 15% GST from any amount. Quick and accurate for NZ businesses.

Estimate weekly, fortnightly, or monthly mortgage repayments and total interest paid.

Calculate repayments for personal, car, or business loans in New Zealand.

Calculate gross and net rental yield for NZ investment properties.

Calculate profit margin, markup percentage, and required selling price.

See how savings and investments grow over time with compound interest.

Four common percentage calculations — quick and easy.

Convert your hourly rate to weekly, monthly, and annual gross income.

Calculate payment due dates based on invoice date and payment terms.