All UK calculators
27 free calculators for money, home, work and everyday life. Choose a category or use search to find the one you need.
Money
About moneySalary & 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.
Open calculatorMortgage 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.
Open calculatorStamp Duty
Estimate the property purchase tax you will pay in England, Scotland or Wales, including first-time buyer relief and the second-home surcharge.
Open calculatorSavings
See how much your savings could grow with regular monthly contributions and compound interest over time.
Open calculatorCompound Interest
Calculate how an initial amount plus regular contributions grows with compound interest, and see a simple visual of that growth.
Open calculatorVAT
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.
Open calculatorIncome Tax
See how much Income Tax and National Insurance you pay on your salary, broken down band by band for the 2025/26 tax year.
Open calculatorLoan Repayment
Work out the monthly repayment, total cost and total interest on a personal or car loan for any amount, rate and term.
Open calculatorPension
Project your pension pot from your current savings, your monthly and employer contributions, and expected investment growth.
Open calculatorSelf-Employed Tax
Estimate the Income Tax and Class 4 National Insurance you pay on your self-employed profit, and what you keep, for 2025/26.
Open calculatorVAT Registration
Check whether your turnover has reached the £90,000 UK VAT registration threshold, and see how much headroom you have left.
Open calculatorHome
About homeMortgage Affordability
Get a rough idea of how much you might be able to borrow, your likely property budget and an estimated monthly payment.
Open calculatorRent Affordability
Work out how much rent you can comfortably afford using the 30% of income guideline and the referencing rule letting agents use.
Open calculatorEnergy Costs
Work out what an appliance costs to run from its wattage, how long you use it, and your electricity unit price.
Open calculatorWork
About workWorking Days
Count the working days between two dates, excluding weekends and UK bank holidays, ideal for deadlines and service levels.
Open calculatorSalary Conversion
Convert a pay figure between annual, monthly, weekly, daily and hourly, based on your working hours and days.
Open calculatorNotice Period
Enter the date you hand in your notice and your notice length to find your expected last working day.
Open calculatorPro-rata Salary
Work out your part-time pro-rata pay from a full-time salary and the hours you actually work.
Open calculatorHoliday Entitlement
Work out your statutory paid holiday from the number of days you work each week, using the 5.6 weeks rule.
Open calculatorOvertime Pay
Work out your overtime pay from your hourly rate, the hours worked and the overtime multiplier such as time-and-a-half.
Open calculatorEveryday
About everydayFuel 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.
Open calculatorPercentage
Work out percentages quickly: a percentage of a number, what percentage one number is of another, and percentage increase, decrease or difference.
Open calculatorAge
Work out your exact age in years, months and days from your date of birth, and see how long until your next birthday.
Open calculatorDate Difference
Count the days between two dates, or add and subtract days from a date, with an option to count working days only.
Open calculatorTip
Work out the tip, the total to pay and how much each person owes when splitting a bill.
Open calculatorBMI
Calculate your Body Mass Index (BMI) in metric or imperial units and see the healthy weight range for your height.
Open calculatorUnit Converter
Convert between metric and imperial units of length, weight and temperature quickly and accurately.
Open calculator