Smart calculations
for life’s big decisions

100+ free calculators across money, property, tax, benefits and more. Accurate, up to date and built for real life in the UK.

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Accurate tools and guides to help you make confident financial decisions.

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Monthly payments, interest vs capital, over the full term.

See exactly what lands in your bank after Income Tax, NI and pension.

SDLT on your next home, including the additional-property surcharge.

Class 1, 2 and 4 NI — explained without the jargon.

Employer + employee auto-enrolment contributions.

Every calculation uses official HMRC, DWP and DVLA data and trusted UK sources.

Get answers in seconds with simple, plain-English tools — no sign-up required.

We don't store your personal information. Your numbers stay on your device.

Designed for students, workers, families, homeowners and everyone in between.

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