All unit converters
Choose a category to start converting. Each converter runs entirely in your browser and works on mobile and desktop.
74 converters 1,698 units 4 measurement families
Common
Length Convert meters, feet, inches, miles, and more. 95 units cm · in · m · ft Weight & Mass Convert kilograms, pounds, ounces, grams, and tons. 70 units kg · lb · g · oz Temperature Convert Celsius, Fahrenheit, and Kelvin. 8 units °C · °F · K Area Convert square feet, square meters, acres, and hectares. 45 units m² · ft² · ac · ha Volume Convert liters, gallons, cups, milliliters, and more. 85 units L · mL · gal (US) · cup (US) Dry Volume Convert dry pints, quarts, pecks, and bushels. 18 units qt dry (US) · pt dry (US) · bu (US) · pk (US) Speed Convert mph, km/h, m/s, and knots. 36 units mph · km/h · m/s · kn Time Convert seconds, minutes, hours, days, and years. 36 units s · min · h · d
Engineering
Pressure Convert pascal, bar, psi, and atmospheres. 50 units Pa · bar · psi · atm Energy Convert joules, calories, kilowatt-hours, and BTU. 51 units J · kcal · kWh · BTU Power Convert watts, kilowatts, and horsepower. 72 units W · kW · hp · PS Force Convert newtons, pound-force, and kilogram-force. 30 units N · lbf · kgf · kN Angle Convert degrees, radians, and gradians. 18 units ° · rad · grad · rev Fuel Economy Convert MPG, km/L, and L/100 km. 37 units mpg (US) · L/100km · km/L · mpg (UK) Acceleration Convert m/s², g-force, and ft/s². 26 units m/s² · g · ft/s² · Gal Angular Acceleration Convert rad/s², rev/s², and rev/min². 6 units rad/s² · rev/s² · (rev/min)/s · rev/min² Torque Convert N·m, lbf·ft, and lbf·in. 26 units N·m · lbf·ft · lbf·in · kgf·m Angular Velocity Convert rad/s, RPM, and degrees per second. 15 units rpm · rad/s · °/s · rev/s Moment of Inertia Convert kg·m², lb·ft², and slug·ft². 16 units kg·m² · lb·ft² · slug·ft² · kg·cm² Flow Rate Convert L/min, gal/min, m³/s, and CFM. 58 units L/min · gpm (US) · CFM · L/s Mass Flow Rate Convert kg/s, kg/h, lb/h, and tonnes per hour. 36 units kg/h · kg/s · lb/h · t/h Mass Flux Density Convert kg/(s·m²), kg/(h·m²), and lb/(h·ft²). 7 units kg/(s·m²) · kg/(h·m²) · lb/(h·ft²) · g/(s·m²) Specific Volume Convert m³/kg, L/kg, and ft³/lb. 13 units m³/kg · ft³/lb · L/kg · cm³/g Dynamic Viscosity Convert Pa·s, poise, and centipoise. 30 units Pa·s · cP · P · mPa·s Kinematic Viscosity Convert m²/s, stokes, and centistokes. 25 units cSt · mm²/s · St · m²/s Surface Tension Convert N/m, dyn/cm, and mN/m. 14 units dyn/cm · mN/m · N/m Thermal Conductivity Convert W/(m·K), BTU·in/(h·ft²·°F), and kcal/(h·m·°C). 15 units W/(m·K) · BTU·in/(h·ft²·°F) · BTU/(h·ft·°F) · kcal(IT)/(h·m·°C) Thermal Resistance Convert K/W, °C/W, and °F·h/BTU. 6 units K/W · °C/W · °F·h/BTU · °F·s/BTU Specific Heat Capacity Convert J/(kg·K), kJ/(kg·K), and BTU/(lb·°F). 15 units J/(kg·K) · kJ/(kg·K) · BTU/(lb·°F) · cal(IT)/(g·°C) Heat Flux Density Convert W/m², BTU/(h·ft²), and kcal/(h·m²). 29 units W/m² · BTU/(h·ft²) · kW/m² · kcal/(h·m²) Heat Density Convert J/m², langley, and BTU/ft². 9 units J/m² · Ly · BTU/ft² · MJ/m² Heat Transfer Coefficient Convert W/(m²·K), U-value, and kcal/(h·m²·°C). 12 units W/(m²·K) · BTU/(h·ft²·°F) · kcal/(h·m²·°C) · W/(m²·°C) Thermal Expansion Convert 1/K, 1/°C, 1/°F, and ppm/°C. 11 units ppm/°C · 1/°C · ppm/°F · 1/K Temperature Interval Convert temperature differences: K, °C, °F, °R. 6 units K · °C · °F · °R Fuel Efficiency (mass) Convert J/kg, BTU/lb, and g/kWh. 16 units J/kg · kJ/kg · BTU/lb · g/kWh Fuel Efficiency (volume) Convert J/m³, BTU/ft³, and therm/ft³. 15 units J/m³ · MJ/m³ · BTU/ft³ · J/L Vapor Permeability Convert perms, perm-inches, and kg/(Pa·s·m²). 5 units kg/(Pa·s·m²) · perm (0 °C) · perm (23 °C) · perm·in (23 °C) Lumber Volume Convert board feet, cords, cunits, and MBF. 17 units bf · MBF · m³ · cord
Science
Frequency Convert hertz, kilohertz, megahertz, and RPM. 28 units Hz · kHz · MHz · GHz Density Convert kg/m³, g/cm³, and lb/ft³. 41 units kg/m³ · g/cm³ · lb/ft³ · lb/gal (US) Electric Current Convert amperes, milliamperes, and kiloamperes. 11 units A · mA · µA · kA Voltage Convert volts, millivolts, and kilovolts. 11 units V · mV · kV · µV Electric Charge Convert coulombs, ampere-hours, and milliampere-hours. 15 units C · A·h · mA·h · mC Electric Resistance Convert ohms, kilohms, and megohms. 13 units Ω · kΩ · MΩ · mΩ Electric Conductance Convert siemens, mhos, and microsiemens. 14 units S · mS · µS · ℧ Electric Conductivity Convert S/m, mho/cm, and µS/cm. 11 units S/m · µS/cm · mS/cm · ℧/cm Electric Resistivity Convert Ω·m, Ω·cm, and Ω·cmil/ft. 8 units Ω·m · Ω·cm · µΩ·cm · Ω·cmil/ft Electric Field Strength Convert V/m, kV/mm, and V/mil. 13 units V/m · kV/m · V/cm · V/mil Capacitance Convert farads, microfarads, nanofarads, and picofarads. 20 units F · µF · nF · pF Inductance Convert henries, millihenries, and microhenries. 20 units H · mH · µH · nH Magnetic Flux Convert webers, maxwells, and volt-seconds. 15 units Wb · Mx · mWb · µWb Magnetic Flux Density Convert tesla, gauss, and milligauss. 16 units T · G · mT · mG Magnetic Field Strength Convert A/m, kA/m, and oersted. 6 units A/m · kA/m · Oe · At/m Magnetomotive Force Convert ampere-turns, kAt, and gilberts. 5 units At · kAt · Gi · mAt Linear Charge Density Convert C/m, C/cm, and abC/m. 6 units C/m · C/cm · C/in Surface Charge Density Convert C/m², C/cm², and abC/m². 6 units C/m² · C/cm² · C/in² Volume Charge Density Convert C/m³, C/cm³, and abC/m³. 6 units C/m³ · C/cm³ · C/in³ Linear Current Density Convert A/m, A/cm, and oersted. 8 units A/m · A/cm · A/in · Oe Current Density Convert A/m², A/cm², and A/circular mil. 7 units A/m² · A/cm² · A/in² · A/cmil Illuminance Convert lux, foot-candles, and phot. 13 units lx · fc · ph · lm/m² Luminance Convert nits, cd/m², stilb, and foot-lamberts. 15 units cd/m² · fL · sb · L Luminous Intensity Convert candela, candlepower, and historical candles. 14 units cd · cp · lm/sr Sound Level Convert decibels, bels, and nepers. 4 units dB · B · Np Radioactivity Convert becquerels, curies, and picocuries. 15 units Bq · Ci · mCi · pCi Radiation Dose Convert gray, sievert, rad, and rem. 29 units Sv · mSv · Gy · rem Radiation Dose Rate Convert Gy/s, mGy/h, rad/s, and Sv/s. 30 units Gy/s · mGy/h · Sv/s · rad/s Radiation Exposure Convert C/kg, roentgens, and mR. 8 units C/kg · R · mR · µC/kg Molar Concentration Convert molar, millimolar, mol/L, and mmol/L. 16 units M · mM · µM · mol/L Solution Concentration Convert mg/L, ppm, grains per gallon, and lb/gal. 11 units mg/L · ppm · g/L · gr/gal (US) Molar Flow Rate Convert mol/s, kmol/h, and mmol/min. 26 units mol/s · kmol/h · mmol/min · mol/h
Data & Digital
Data Storage Convert bytes, KB, MB, GB, and binary KiB, MiB, GiB. 47 units B · MB · GB · MiB Data Transfer Convert Mbps, MB/s, Gbps, and more. 87 units Mbit/s · MB/s · Gbit/s · kbit/s Image Resolution Convert DPI, PPI, dots per cm, and pixels per mm. 11 units dpi · ppi · dot/cm · px/cm Typography Convert points, picas, pixels, twips, and millimeters. 13 units pt · pc · px · mm
No converter matches that search. Try a unit name such as pascal, a symbol such as Ω, or a measurement type such as flow.