Converters

Length, weight, temperature, speed, volume, pressure, energy, power, clothing and shoe sizes: every unit conversion in one click.

17 calculators
Length converterConvert between meters, centimeters, kilometers, inches, feet and miles.Open →
Weight converterConvert between kilograms, grams, pounds, ounces and stones.Open →
Temperature converterConvert between Celsius, Fahrenheit and Kelvin.Open →
Speed converterkm/h, mph, m/s and knots, plus the time to cover 100 km.Open →
File size and download timeConvert MB, GB, TB and work out download time for your connection speed.Open →
Volume converterLitres, millilitres, m³, US and UK gallons, pints and fluid ounces.Open →
Area unit converter (m², ha, acres)Convert square metres, ares, hectares, km², square feet and acres.Open →
Shoe size converter (EU, US, UK)Convert a European shoe size to US or UK, and back.Open →
Pressure converter (bar, PSI)Tyres, weather or diving: convert bar, PSI, kPa, atm and mmHg.Open →
Energy converter (kWh, kcal, joules)Convert kWh, joules, calories and BTU, for electricity, heating or nutrition.Open →
Number to wordsWrite a number or amount out in words, in English or French (with Belgian variants).Open →
Power converter (kW, hp, W)Convert engine or appliance power between kW, horsepower and watts.Open →
Fuel economy converter (L/100 km ↔ mpg)Compare the fuel economy of American, British or European cars.Open →
Clothing size converter (EU, US, UK)Find your clothing size in the European, US, UK and Italian systems.Open →
Angle converter (degrees, radians, gradians)Convert an angle between degrees, radians, gradians, turns and arcminutes, with degrees-minutes-seconds format.Open →
Paper sizes in cm, inches and pixelsExact dimensions of A, B and US paper sizes, and their size in pixels for printing.Open →
Ring size converterFind your ring size from your finger circumference, and its US, UK and diameter equivalents.Open →