Financial Calculators

Mortgages, loans, investments, retirement, taxes and everything else that moves money.

These calculators cover the arithmetic behind everyday money decisions: what a loan really costs once interest is counted, how a fixed monthly instalment splits between interest and principal, how savings grow when returns compound, and how sales tax, VAT or GST change a price. Each one shows the formula it uses and works an example with its own default figures, so you can check the method before trusting the answer.

They are planning tools, not quotes. Lenders round differently, add fees and apply eligibility rules; tax rules change and depend on circumstances. Use a result to compare options and ask better questions, then confirm the figure with the lender, provider or adviser who will actually set it.

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