CodeASystem calculators

Conversions calculators

Conversions9

Unit conversion calculators for length, weight, temperature, volume, speed, area, data storage and time.

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Convert lengths and distances between metric and imperial units; millimeters through kilometers, inches, feet, yards and miles.

Convert weights between milligrams, grams, kilograms, tonnes, ounces, pounds, stone and US tons using exact internationally agreed factors.

Convert temperatures exactly between Celsius, Fahrenheit and Kelvin using the official formulas, with absolute-zero validation built in.

Convert volumes among milliliters, liters, cubic meters and US kitchen measures; teaspoons, tablespoons, cups, pints, quarts and gallons.

Convert speeds between m/s, km/h, mph, knots and ft/s with exact factors for driving, aviation, marine and running contexts.

Convert areas between square meters, kilometers, feet, yards, acres, hectares and square miles for land, rooms and building plots.

Convert bits, bytes, KB, MB, GB, TB and their binary KiB–TiB counterparts, choosing between decimal (1000) and binary (1024) standards.

Convert durations among milliseconds, seconds, minutes, hours, days, weeks, months and years with calendar-average definitions.

Convert fuel consumption between US mpg, UK mpg and liters per 100 km with exact triangular formulas; the mpg ↔ L/100km bridge.