Everyday tools, all in one place
Free calculators and converters for money, motoring, home and more. No sign-up, nothing uploaded, made for your phone: one site instead of a dozen apps.
Money
- VAT calculatorAdd or remove VAT at UK, EU and other countries’ rates, or your own.
- Loan calculatorMonthly repayments, total interest and a year-by-year breakdown for any loan.
- Mortgage calculatorMonthly repayments, loan-to-value and a rough guide to how much you could borrow.
- Savings calculatorSee savings grow with compound interest, or work out how much to save each month for a goal.
- Tip & bill splitterWork out the tip and split the bill between friends, with rounding.
- Discount calculatorSale prices, savings and stacked discounts, or work out the % off.
- Margin & markup calculatorProfit, margin and markup from cost and price, or the price you need for a target margin.
- Take-home pay calculatorYour pay after tax and deductions in the UK, US (inc. California and New York), Germany, France, Italy, Spain and Poland.
- House bills plannerPlan shared and personal household bills, split them fairly, and see what’s left each month and the emergency fund you need.
- Amazon KDP calculatorRoyalties, printing costs and margins for self-published books, with your own costs and sales.
- Landlord calculatorRental yield, cash flow, stamp duty and estimated tax on a buy-to-let.
- Currency converterConvert between about 30 currencies using the European Central Bank’s daily rates. Works offline.
Motoring
- Fuel cost calculatorWhat a journey costs in petrol or diesel, with wear and tear, split between passengers.
- Tyre size calculatorDiameter, sidewall and revs per mile, and compare two sizes for speedometer difference.
- Socket size converterMetric and imperial socket and spanner sizes, and which ones swap safely.
- Speed convertermph, km/h, knots and metres per second.
- Pressure converterPSI, bar, kPa and more: handy for tyre pressures.
- Fuel economy converterUK and US MPG, litres per 100 km and km per litre.
- Torque converterNewton metres, foot-pounds and inch-pounds for torque wrench settings.
Home & energy
Conversions
- Length converterCentimetres, inches, feet, metres, miles and more, with feet and inches shown together.
- Weight converterKilograms, stone, pounds and ounces, with stone and pounds shown together.
- Temperature converterCelsius, Fahrenheit and Kelvin, with the formula shown.
- Area converterSquare metres, square feet, acres, hectares and more.
- Volume converterLitres, UK and US gallons, pints, fluid ounces and more.
- Time converterSeconds, minutes, hours, days, weeks, months and years.
- Data storage converterBytes, KB, MB, GB, TB, and the 1024-based KiB, MiB and GiB.
- Energy converterJoules, calories, kWh, BTU and therms.
- Cooking converterCups, spoons, grams, ounces and ml, using the weight of the actual ingredient.
Maths
Health
Dates & time
Planning
Text
Generators
Popular conversions
Coming soon
- EV charging costComing soonCost to charge an electric car at home or on the road.