Converters
Converters let you move between common metric, imperial, engineering and digital units while stating the conversion basis and relevant conventions.
Everyday measurements
Convert common length, weight, size, temperature, speed, cooking and time units.
Length Converter
Convert meters, kilometers, centimeters, millimeters, inches, feet, yards and miles.
Open tool →Weight Converter
Convert kilograms, grams, pounds and ounces.
Open tool →Temperature Converter
Convert Celsius, Fahrenheit and Kelvin.
Open tool →Speed Converter
Convert km/h, mph, m/s and knots.
Open tool →Area Converter
Convert square meters, square feet, acres, hectares and other common area units.
Open tool →Volume Converter
Convert liters, milliliters, cubic units and common US liquid volume units.
Open tool →Cooking Measurement Converter
Convert common liquid cooking volumes including mL, liters, teaspoons, tablespoons, cups and US fluid units.
Open tool →Time Unit Converter
Convert between seconds, minutes, hours, days, weeks and common-year equivalents.
Open tool →Engineering & science
Convert scientific and engineering quantities with consistent unit relationships.
Pressure Converter
Convert pascals, kilopascals, bar, PSI, atmospheres and millimeters of mercury.
Open tool →Energy Converter
Convert joules, kilojoules, calories, kilocalories, watt-hours and kilowatt-hours.
Open tool →Power Converter
Convert watts, kilowatts, megawatts, horsepower and BTU per hour.
Open tool →Angle Converter
Convert angles between degrees, radians, gradians and turns.
Open tool →Frequency Converter
Convert frequency between hertz, kilohertz, megahertz, gigahertz and revolutions per minute.
Open tool →Force Converter
Convert force between newtons, kilonewtons, pound-force, kilogram-force and dynes.
Open tool →Torque Converter
Convert torque between newton-meters, kilonewton-meters, pound-feet and pound-inches.
Open tool →Acceleration Converter
Convert acceleration between m/s², ft/s², standard gravity and Gal.
Open tool →Density Converter
Convert density between kg/m³, g/cm³, lb/ft³ and lb/in³.
Open tool →Illuminance Converter
Convert illuminance between lux, kilolux and foot-candles.
Open tool →Data, fuel & flow
Convert digital data rates, fuel economy and mass or volumetric flow.
Data Storage Converter
Convert bytes, KB, MB, GB and TB using decimal storage units.
Open tool →Data Transfer Rate Converter
Convert network and file-transfer rates between bits per second and bytes per second units.
Open tool →Fuel Economy Converter
Convert between L/100 km, km/L, US MPG and UK MPG.
Open tool →Mass Flow Rate Converter
Convert mass flow rates between kg/s, kg/min, kg/h, lb/s, lb/min and lb/h.
Open tool →Volumetric Flow Rate Converter
Convert liquid or gas volume flow between L/s, L/min, m³/h, US GPM and CFM.
Open tool →About Converters
Unit converters for physical measurements, engineering values, cooking, fuel economy and digital transfer rates.
- Metric and imperial/US customary unit support where relevant.
- Fast browser-based conversions.
- Useful notes explain rounding and unit conventions.
Each tool page includes its own inputs, method or formula, example and relevant notes. Use the topic sections above to move between closely related tasks, or browse the complete SmartCheu tools directory.