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UK Life Calculator

Free UK calculators · No sign-up

UK calculators for everyday life

Quick, simple and free calculators for money, work, home and everyday decisions.

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Salary & Take-Home Pay

Estimate your take-home pay after Income Tax, National Insurance, pension contributions and student loan deductions for the 2025/26 tax year.

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Mortgage Affordability

Get a rough idea of how much you might be able to borrow, your likely property budget and an estimated monthly payment.

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Mortgage Repayment

Work out your monthly mortgage payment, the total you will repay and how much of that is interest over the life of the loan.

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Stamp Duty

Estimate the property purchase tax you will pay in England, Scotland or Wales, including first-time buyer relief and the second-home surcharge.

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Fuel Cost

Work out what a journey really costs in fuel using your car’s MPG and the price at the pump, per trip, per week, per month and per year.

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Compound Interest

Calculate how an initial amount plus regular contributions grows with compound interest, and see a simple visual of that growth.

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Percentage

Work out percentages quickly: a percentage of a number, what percentage one number is of another, and percentage increase, decrease or difference.

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Age

Work out your exact age in years, months and days from your date of birth, and see how long until your next birthday.

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Working Days

Count the working days between two dates, excluding weekends and UK bank holidays, ideal for deadlines and service levels.

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VAT

Add VAT to a net price or remove VAT from a gross price at the standard 20% rate, the reduced 5% rate, or a custom rate.

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Browse by category

Home

1 tools

Buying, renting and running a home

Work

3 tools

Pay, hours, notice and working days

Everyday

5 tools

Dates, ages, percentages and journeys

What is UK Life Calculator?

UK Life Calculator is a free collection of simple, reliable calculators built for life in the UK. Whether you want to check your take-home pay after Income Tax and National Insurance, estimate a mortgage repayment, work out the Stamp Duty on a house, or just find the days between two dates, our tools give you a clear answer in seconds.

Every money calculator uses current UK rates and thresholds and explains the assumptions behind the numbers, so you always know how a result was worked out. The calculators are designed to be fast and mobile-friendly, with no sign-up and no clutter, just the tool you came for and a plain-English explanation alongside it.

Popular tools include our salary and take-home pay calculator, mortgage affordability calculator, compound interest calculator and percentage calculator. Results are estimates for general guidance and are not financial, tax or legal advice.