Unit Conversion Calculators

Convert length between meters, kilometers, centimeters, millimeters, inches, feet, yards, and miles instantly with high-precision decimal output values.

Convert weight and mass between kilograms, grams, pounds, ounces, stone, and metric tonnes with precise conversion factors and multiple decimals of accuracy.

Convert temperatures between Celsius, Fahrenheit, and Kelvin with exact conversion formulas — ideal for cooking, science, weather, and international travel.

Convert area between square feet, square meters, square yards, acres, hectares, and square kilometers for real estate, construction, and land measurement.

Convert volume between liters, milliliters, US and UK gallons, quarts, pints, cups, fluid ounces, and cubic meters for cooking, chemistry, and engineering.

Convert time between seconds, minutes, hours, days, weeks, months, and years using average calendar values — handy for durations and timeline planning.

Convert speed between miles per hour, kilometers per hour, meters per second, feet per second, and knots for running, driving, sailing, and aviation.

Convert digital data storage between bits, bytes, kilobytes, megabytes, gigabytes, terabytes, and petabytes using both decimal (SI) and binary (IEC) units.

Convert energy between joules, kilojoules, calories, kilocalories, kilowatt-hours, watt-hours, BTU, and electronvolts for physics, nutrition, and utility bills.

Convert pressure between psi, bar, kilopascals, megapascals, atmospheres, torr, and mmHg for engineering, weather, tire, and scientific measurements.