Free financial calculators

Five quick calculators that need no account. Each one shows how its figure is worked out and which official rules it uses.

FIRE number calculator

How much you need to stop working, and when your savings get there.

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Coast FI calculator

What you need invested today so that growth alone gets you to retirement.

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UK inheritance tax calculator

The tax on an estate under the nil-rate and residence bands, for a single person or a couple.

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CPP claiming age calculator

When to start CPP, OAS, QPP, US Social Security or the UK State Pension.

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Mortgage affordability calculator

How much you can borrow and the price you can pay, in the UK, Canada or the US.

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Sample households

Open the demo on a full plan for one of these households. No account needed.

An illustration with simplified rules, not financial advice.