All Unit Converters

Convert units of length like meters, feet, miles, kilometers, yards, inches, and more.

Convert Celsius, Fahrenheit, and Kelvin temperature scales.

Convert units of mass like kilograms, pounds, ounces, grams, stone, and more.

Convert liters, gallons (US & Imperial), milliliters, cups, cubic meters, etc.

Convert seconds, minutes, hours, days, weeks, months, and years.

Convert m/s, km/h, mph, knots, feet/second.

Convert square meters, square feet, acres, hectares, square miles, etc.

Convert bytes, KB, MB, GB, TB, bits, Kibibytes (KiB), Mebibytes (MiB), etc.

Convert pascals, psi, bar, atm, torr, millibar, etc.

Convert joules, calories (food & thermo), kWh, BTU, electronvolts, etc.

Convert degrees, radians, gradians, arcminutes, arcseconds, and revolutions.

Convert Hertz (Hz), Kilohertz (kHz), Megahertz (MHz), Gigahertz (GHz), RPM, and rad/s.

Convert bps, kbps, Mbps, Gbps, Bps, KBps, MBps, GBps, and their binary equivalents.

Convert MPG (US & Imperial), L/100km, km/L, miles/L, etc.

Convert Watts, Kilowatts, Horsepower (mechanical & metric), BTU/hour, ft·lbf/s, etc.

Convert pixels (px), points (pt), picas (pc), inches (in), mm, cm, rem, and em. Assumes 16px base for rem/em.

Convert Newtons (N), Dynes (dyn), Pound-force (lbf), Kilogram-force (kgf), Poundals (pdl).

Convert milliliters, liters, US teaspoons, US tablespoons, US cups, US pints, metric cups, etc.

Convert between Arabic (standard) numbers (1-3999) and Roman numerals (I-MMMCMXCIX).

Convert numbers between Decimal (base 10), Binary (base 2), Hexadecimal (base 16), and Octal (base 8).

Convert m³/s, L/min, gal/h (US & Imperial), ft³/min, etc., for volumetric flow rates.

Convert kg/m³, g/cm³, lb/ft³, lb/gal (US & Imperial), and other density units.

Convert Newton-meters (Nm), pound-force feet (lbf·ft), kgf·m, and other torque units.

Convert Pascal-seconds (Pa·s), Poise (P), Centipoise (cP), lb/(ft·s), etc.

Convert m²/s, Stokes (St), Centistokes (cSt), ft²/s, in²/s for kinematic viscosity.

Convert cd/m² (nit), stilb (sb), lambert (L), foot-lambert (fL), apostilb (asb).

Convert Coulombs (C), elementary charge (e), Ampere-hour (Ah), Faraday (F), statcoulomb, abcoulomb.

Convert lux (lx), foot-candle (fc), phot (ph), nox (nx), lm/m², lm/ft².

Convert blood glucose levels between mg/dL (milligrams per deciliter) and mmol/L (millimoles per liter).

Convert mol/L (M), mmol/L (mM), µmol/L (µM), mol/m³, lbmol/ft³ for molarity.

Convert Becquerel (Bq), Curie (Ci), Rutherford (Rd), dps, dpm for radioactive decay.

Convert Pascals (Pa) for sound pressure, Decibels SPL (dB SPL), Bels SPL, and Nepers (Np).

Convert between wavelength (m, nm, µm), frequency (Hz, MHz, GHz), and photon energy (J, eV).

Convert Pixels Per Inch (PPI), Pixels Per Centimeter (PPCM), and Dots Per Inch (DPI).

Convert Bq/kg, Ci/g, dps/g, and other units for radioactivity per unit mass.

Convert lumens (lm), candela steradian (cd·sr), and spherical candlepower (scp).

Convert candela (cd), millicandela (mcd), hefnerkerze (HK), international candle.

Convert Light-Years (ly), Parsecs (pc), Astronomical Units (AU), kilometers (km), miles (mi).

Convert coordinates between Decimal Degrees (DD), Degrees Minutes Seconds (DMS), and Degrees Decimal Minutes (DDM).

Convert Henry (H), millihenry (mH), microhenry (µH), nanohenry (nH), abhenry, stathenry.

Convert Farad (F), microfarad (µF), nanofarad (nF), picofarad (pF), abfarad, statfarad.

Convert Tesla (T), Gauss (G), millitesla (mT), microtesla (µT), gamma (γ), and related units.

Convert Gray (Gy), Rad, Milligray (mGy), Microgray (µGy), Centigray (cGy), Millirad (mrad).