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UnitConverter
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Free Online Unit Converter — 80+ Converters

Convert any unit instantly. Length, weight, temperature, currency, pressure, velocity, density, acceleration, torque, flow rate, viscosity, surface tension, angle, energy, power, data storage, and 60+ more. Live currency rates across 38 currencies with automatic offline fallback.

All conversions use precise mathematical constants validated against international SI standards. No registration required — completely free.

💱Currency Converter

38 currencies · Live rates

⌇Length Converter

13 units · nm to light years

⊛Weight Converter

10 units · mcg to metric tons

◉Temperature Converter

7 scales · Kelvin & Rankine

◈Pressure Converter

Bar, PSI, atm, Pa, Torr

⟫Velocity Converter

mph, km/h, knots, Mach, m/s

⬛Density Converter

kg/m³, g/cm³, lb/ft³

↗Acceleration Converter

m/s², g-force, Gal, ft/s²

⤾Torque Converter

N·m, lbf·ft, kgf·m, ozf·in

⊳Flow Rate Converter

m³/h, L/min, gal/min, ft³/s

≈Viscosity Converter

Pa·s, Poise, Centipoise, cSt

⌒Surface Tension Converter

N/m, dyn/cm, lbf/ft, mN/m

∠Angle Converter

Degrees, radians, gradians

⚡Energy Converter

Joules, kWh, BTU, calories

⊞Data Storage Converter

KB, MB, GB, TB, bits & bytes

#Number Base Converter

Binary, decimal, hex, octal

All Unit Converters

Free online converters for every unit — length, weight, temperature, currency, pressure, speed, energy, data storage and more.

CurrencyLengthWeight & MassTemperaturePressureVelocity & SpeedArea — 36 Units Including Acres, Hectares, sq ft & MoreVolume — Liters, Gallons, Cups, Pints & MoreEnergyPowerAngleTimeData StorageFuel ConsumptionNumber BaseDensityAccelerationTorqueForceAngular VelocityVolumetric Flow Rate — m³/h, GPM, L/min & MoreDynamic ViscosityKinematic ViscositySurface TensionMass Flow RateHeat Flux Density — W/m² to BTU and MoreThermal ConductivitySpecific Heat CapacityIlluminanceFrequencyElectric CurrentElectric ResistanceCapacitanceData Transfer SpeedAngular Acceleration — rad/s², deg/s², RPM/sSpecific Volume — m³/kg to ft³/lb and MoreMoment of Inertia — kg·m², lb·ft², g·cm²Molar Concentration — mol/L, mmol/L, μmol/LSolution Concentration — g/L, mg/L, ppm, ppbPermeability — Darcy, Millidarcy, m²Temperature Interval (Difference) — ΔK, Δ°C, Δ°FFuel Efficiency (Mass) — MJ/kg, BTU/lb, kWh/kgLuminance — cd/m² (nit), Footlambert, StilbImage Resolution — DPI, PPI, DPCMElectric Potential (Voltage) — V, mV, kV, MVInductance — Henry (H), mH, μH, nHElectric Charge — Coulombs, mAh, μC, mCMagnetic Flux Density — Tesla, Gauss, mTMagnetic Flux — Weber (Wb), Maxwell (Mx)Magnetic Field Strength — A/m, Oersted, kA/mRadiation Absorbed Dose — Gray (Gy), RadRadiation Activity — Becquerel (Bq), Curie (Ci)Radiation Exposure — Roentgen (R), C/kgSI Prefix — kilo, mega, giga, tera, nano, microTypography Unit — Points, Picas, Pixels, mmSound Level — Decibels (dB), Nepers (Np)

Popular Currency Conversions

Live mid-market exchange rates for the most searched currency pairs worldwide.

USD to EURUSD to GBPUSD to JPYUSD to CADUSD to AUDUSD to CHFUSD to CNYUSD to INRUSD to MXNUSD to BRLUSD to KRWUSD to SGDUSD to HKDUSD to NOKUSD to SEKUSD to DKKUSD to NZDUSD to ZARUSD to TRYUSD to THBUSD to IDRUSD to MYRUSD to PHPUSD to PLNUSD to CZKUSD to HUFUSD to ILSUSD to CLPUSD to ARSUSD to COPUSD to PENUSD to VNDUSD to NGNUSD to GHSUSD to KESUSD to ZMWUSD to UGXUSD to TZSUSD to ETBUSD to MAD