Unit converters
Unit converters on ConvertPass are arithmetic in this browser. SI and customary factors are labelled, including US versus imperial gallons and SI versus IEC bytes. ConvertPass is not a survey instrument, a dyno, or a legal-for-trade scale.
- unitsLength converterConvert millimetres, feet, miles, and nautical miles without a spreadsheet.
- unitsMass converterConvert grams, pounds, stone, and metric tonnes without mixing US and UK tons.
- unitsTemperature converterConvert °C, °F, Kelvin, and Rankine without an offset mistake.
- unitsVolume converterConvert litres, cups, and gallons without mixing US and imperial.
- unitsArea converterConvert square metres, acres, and hectares without a survey plat.
- unitsSpeed converterConvert km/h, mph, and knots without treating Mach as a constant.
- unitsData size converterConvert MB and MiB without pretending 1024 and 1000 are the same.
- unitsEnergy converterConvert kWh, kilocalories, and BTU without mixing food Calories.
- unitsPressure converterConvert bar, psi, and atmospheres without treating mmHg as weather magic.
- unitsPower converterConvert kW and horsepower without mixing mechanical hp and metric PS.
- unitsAngle converterConvert degrees, radians, and turns without a π rounding surprise you cannot inspect.
- unitsFuel economy converterConvert L/100 km and mpg without using the wrong gallon.
- unitsTime units converterConvert hours, days, and milliseconds without inventing a month length.