Convert money and measurements in seconds.
Daily exchange rates for 150+ currencies, plus quick converters and calculators for everyday numbers.
Loading today’s rate…
Popular conversions
Unit converters
- Length converterMillimetres, inches, feet, metres, kilometres, miles and nautical miles.
- Weight converterGrams, kilograms, ounces, pounds, stone and tonnes.
- Temperature converterCelsius, Fahrenheit, kelvin and Rankine.
- Volume converterMillilitres, litres, cups, pints, US and UK gallons.
- Area converterSquare metres, square feet, acres, hectares and square miles.
- Speed converterkm/h, mph, metres per second, knots and feet per second.
- Time converterSeconds, minutes, hours, days, weeks, months and years.
- Data storage converterBits, bytes, KB, MB, GB, TB and their binary KiB, MiB, GiB versions.
- Pressure converterpsi, bar, kPa, atmospheres and mmHg for tyres and weather.
- Energy converterJoules, calories, kilocalories, kWh and BTU.
- Power converterWatts, kilowatts, horsepower and BTU per hour.
- Angle converterDegrees, radians, gradians, turns, arcminutes and arcseconds.
- Cooking measurement converterCups, tablespoons, teaspoons and fluid ounces in US, metric, UK and Australian sizes.
- Fuel economy converterUS mpg, UK mpg, litres per 100 km and km per litre.
Date and time
- Days between datesDays, weeks, months and weekdays between two dates.
- Age calculatorExact age in years, months and days, plus your next birthday.
- Time zone converterConvert a date and time between any two time zones, with daylight saving applied.
- Business days calculatorWorking days between two dates, or a date plus a number of working days.
- Week number calculatorISO week number and the Monday-to-Sunday dates for any date.
Math
Money and everyday
- Discount calculatorSale price, savings and the real total when two discounts stack.
- Tip calculatorTip, total and each person’s share, with an option to round up.
- Loan calculatorMonthly payment, total repaid and interest for a fixed-rate loan.
- BMI calculatorBody mass index in metric or imperial units, with the healthy range.
- Shoe size converterAdult shoe sizes between US, UK, EU and foot length in cm.
Use it like an app
Add this site to your home screen for one-tap access. It opens full screen and remembers your last currencies.