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Finance calculators with worked examples

Pick a calculator, enter your own numbers and see the result right away. Each page explains the formula in plain words and walks through an example.

Mortgage payment

Payments, total interest and balances for home loans, plus extra payments, biweekly plans and affordability.

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Compound interest

Growth of a lump sum or regular deposits, with an inflation setting.

Loan amortization

Payment and balance tables for car loans and personal loans.

Retirement savings

What regular saving could build by the age you retire.

Savings goal

The monthly deposit needed to reach a target amount.

This page is for education only and is not financial or tax advice.