Everyday math, made simple

Online Calculators UK

Fast, focused calculators for money, dates, health, percentages and everyday conversions. No signups, no fuss, just answers.

Browse calculators VAT calculator

Quick VAT check

VAT 20% £0.00

Total £0.00

£ Finance Mortgage Calculator Estimate monthly payments, total repayment and interest.

£ Finance Loan Calculator Compare loan repayments across rates, terms and balances.

% Math Percentage Calculator Find percentage increases, decreases and changes.

BMI Health BMI Calculator Calculate body mass index with metric or UK units.

£ Finance Tip Calculator Split bills and calculate tip amounts in seconds.

U Conversion Unit Converter Convert length, weight and volume units.

VAT Finance VAT Calculator Add or remove UK VAT instantly with accurate results.

D Date Days Between Dates Count the total days between two calendar dates.

PM Finance Profit and Margin Calculate profit and margin from cost and selling price.

WD Date Working Days Count weekdays between two dates, excluding weekends.

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Instant results

Calculations update in your browser as you type, with no form submissions or waiting around.

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Clear formulas

Each calculator includes a short explanation so you know what the result means.

UK

UK friendly

Money tools use GBP formatting and practical UK-style inputs where they matter.

Why use CalcHub?

Practical calculators for everyday UK decisions

Fast, accurate UK calculators
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Works on mobile and desktop
Built for real everyday decisions