All Unit Converters
Browse our complete collection of unit converters organized by category.
Common Converters
Everyday unit conversions for length, weight, temperature, volume, and more.
Length Converter
Convert between meters, kilometers, miles, feet, inches, centimeters, millimeters, yards, and more length units.
Weight and Mass Converter
Convert between kilograms, pounds, ounces, grams, tons, stones, and more weight/mass units.
Volume Converter
Convert between liters, gallons, milliliters, cubic meters, cups, pints, quarts, and more volume units.
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine temperature scales.
Area Converter
Convert between square meters, square feet, acres, hectares, square kilometers, square miles, and more area units.
Pressure Converter
Convert between pascal, bar, psi, atmosphere, torr, and more pressure units.
Energy Converter
Convert between joules, calories, kilowatt-hours, BTU, electronvolts, and more energy units.
Power Converter
Convert between watts, kilowatts, horsepower, BTU/hour, and more power units.
Force Converter
Convert between newtons, kilonewtons, pound-force, dyne, kilogram-force, and more force units.
Time Converter
Convert between seconds, minutes, hours, days, weeks, months, years, and more time units.
Speed Converter
Convert between m/s, km/h, mph, knots, mach, and more speed units.
Angle Converter
Convert between degrees, radians, gradians, arcminutes, arcseconds, and more angle units.
Fuel Consumption Converter
Convert between km/L, mpg, L/100km, and more fuel consumption units.
Numbers Converter
Convert between decimal, binary, octal, hexadecimal number systems.
Data Storage Converter
Convert between bytes, kilobytes, megabytes, gigabytes, terabytes, and more data storage units.
Volume - Dry Converter
Convert between dry volume units like bushels, pecks, dry quarts, and dry pints.
Engineering Converters
Specialized converters for engineering applications including density, torque, and acceleration.
Velocity - Angular Converter
Convert between rad/s, rpm, deg/s, and more angular velocity units.
Acceleration Converter
Convert between m/s², g-force, ft/s², gal, and more acceleration units.
Acceleration - Angular Converter
Convert between rad/s², rev/s², deg/s², and more angular acceleration units.
Density Converter
Convert between kg/m³, g/cm³, lb/ft³, and more density units.
Specific Volume Converter
Convert between m³/kg, L/kg, ft³/lb, and more specific volume units.
Moment of Inertia Converter
Convert between kg·m², lb·ft², g·cm², and more moment of inertia units.
Moment of Force Converter
Convert between N·m, kgf·m, lbf·ft, and more moment of force (torque) units.
Torque Converter
Convert between N·m, lbf·ft, kgf·m, and more torque units.
Heat Converters
Thermal and heat-related unit conversions for engineering and scientific use.
Fuel Efficiency - Mass Converter
Convert between J/kg, kJ/kg, BTU/lb, cal/g, and more fuel efficiency (mass) units.
Fuel Efficiency - Volume Converter
Convert between J/L, kJ/L, BTU/gallon, and more fuel efficiency (volume) units.
Temperature Interval Converter
Convert between temperature interval units like °C, °F, K, and °R.
Thermal Expansion Converter
Convert between thermal expansion coefficient units.
Thermal Resistance Converter
Convert between thermal resistance units like °C/W, °F·h/BTU.
Thermal Conductivity Converter
Convert between W/(m·K), BTU/(h·ft·°F), and more thermal conductivity units.
Specific Heat Capacity Converter
Convert between J/(kg·°C), BTU/(lb·°F), cal/(g·°C), and more specific heat capacity units.
Heat Density Converter
Convert between J/m², cal/cm², BTU/ft², and more heat density units.
Heat Flux Density Converter
Convert between W/m², BTU/(h·ft²), cal/(s·cm²), and more heat flux density units.
Heat Transfer Coefficient Converter
Convert between W/(m²·K), BTU/(h·ft²·°F), and more heat transfer coefficient units.
Fluids Converters
Flow rate, viscosity, concentration, and other fluid mechanics conversions.
Flow Converter
Convert between m³/s, L/min, gallon/min, ft³/s, and more volumetric flow units.
Flow - Mass Converter
Convert between kg/s, kg/h, lb/s, lb/h, and more mass flow units.
Flow - Molar Converter
Convert between mol/s, mol/min, mol/h, kmol/s, and more molar flow units.
Mass Flux Density Converter
Convert between kg/(s·m²), g/(s·cm²), lb/(h·ft²), and more mass flux density units.
Concentration - Molar Converter
Convert between mol/L, mol/m³, mmol/L, µmol/L, and more molar concentration units.
Concentration - Solution Converter
Convert between kg/L, mg/L, ppm, ppb, g/L, and more solution concentration units.
Viscosity - Dynamic Converter
Convert between Pa·s, poise, centipoise, lb/(ft·s), and more dynamic viscosity units.
Viscosity - Kinematic Converter
Convert between m²/s, stokes, centistokes, ft²/s, and more kinematic viscosity units.
Surface Tension Converter
Convert between N/m, mN/m, dyne/cm, and more surface tension units.
Permeability Converter
Convert between m², darcy, millidarcy, and more permeability units.
Light Converters
Luminance, illumination, frequency, and optical unit conversions.
Luminance Converter
Convert between cd/m², nit, stilb, lambert, foot-lambert, and more luminance units.
Luminous Intensity Converter
Convert between candela, candlepower, hefnerkerze, and more luminous intensity units.
Illumination Converter
Convert between lux, foot-candle, phot, nox, and more illumination units.
Digital Image Resolution Converter
Convert between DPI, dots/cm, dots/mm, and other digital image resolution units.
Frequency Wavelength Converter
Convert between hertz, kilohertz, megahertz, gigahertz, and wavelength.
Electricity Converters
Electric charge, current, resistance, capacitance, and more electrical unit conversions.
Charge Converter
Convert between coulombs, millicoulombs, ampere-hours, faraday, and more electric charge units.
Linear Charge Density Converter
Convert between C/m, C/cm, µC/m, and more linear charge density units.
Surface Charge Density Converter
Convert between C/m², C/cm², µC/m², and more surface charge density units.
Volume Charge Density Converter
Convert between C/m³, C/cm³, C/L, and more volume charge density units.
Current Converter
Convert between ampere, milliampere, microampere, kiloampere, and more electric current units.
Linear Current Density Converter
Convert between A/m, A/cm, A/in, and more linear current density units.
Surface Current Density Converter
Convert between A/m², A/cm², A/in², and more surface current density units.
Electric Field Strength Converter
Convert between V/m, kV/m, V/cm, and more electric field strength units.
Electric Potential Converter
Convert between volt, millivolt, microvolt, kilovolt, megavolt, and more electric potential units.
Electric Resistance Converter
Convert between ohm, milliohm, microohm, kiloohm, megaohm, and more electric resistance units.
Electric Resistivity Converter
Convert between Ω·m, Ω·cm, µΩ·cm, and more electric resistivity units.
Electric Conductance Converter
Convert between siemens, millisiemens, microsiemens, and more electric conductance units.
Electric Conductivity Converter
Convert between S/m, mS/cm, µS/cm, and more electric conductivity units.
Electrostatic Capacitance Converter
Convert between farad, microfarad, nanofarad, picofarad, and more capacitance units.
Inductance Converter
Convert between henry, millihenry, microhenry, nanohenry, and more inductance units.
Magnetism Converters
Magnetic field, flux, and magnetomotive force conversions.
Magnetomotive Force Converter
Convert between ampere-turn, kiloampere-turn, milliampere-turn, gilbert, and more MMF units.
Magnetic Field Strength Converter
Convert between A/m, A/cm, Oersted, and more magnetic field strength units.
Magnetic Flux Converter
Convert between weber, milliweber, microweber, maxwell, and more magnetic flux units.
Magnetic Flux Density Converter
Convert between tesla, gauss, milligauss, and more magnetic flux density units.
Radiology Converters
Radiation dose, activity, and exposure unit conversions.
Radiation Converter
Convert between gray, rad, sievert, rem, and more radiation dose units.
Radiation-Activity Converter
Convert between becquerel, curie, millicurie, rutherford, and more radioactivity units.
Radiation-Exposure Converter
Convert between C/kg, R (roentgen), mR, and more radiation exposure units.
Radiation-Absorbed Dose Converter
Convert between gray, rad, milligray, centigray, and more absorbed dose units.
Other Converters
Additional converters including data transfer, typography, sound, and SI prefixes.
Prefixes Converter
Convert between SI prefixes like yotta, zetta, exa, peta, tera, giga, mega, kilo, etc.
Data Transfer Converter
Convert between bit/s, Kbit/s, Mbit/s, Gbit/s, byte/s, and more data transfer rate units.
Sound Converter
Convert between bel, decibel, neper, and more sound level units.
Typography Converter
Convert between point, pica, pixel, em, inch, centimeter, and more typography units.
Volume - Lumber Converter
Convert between board foot, thousand board feet, cord, cubic meter, and more lumber volume units.