All Unit Converters
39 converters covering 316 units. Each converter page has a live converter, every conversion pair, unit definitions and printable charts. Looking for formulas instead? See all calculators.
Common Converters
- Length Converter – m, km, cm, mm, µm, ft, in, mi, yd, nmi
- Temperature Converter – °C, °F, K, °R
- Weight and Mass Converter – kg, g, mg, lb, oz, st, t, ton, oz t, ct
- Energy Converter – J, kJ, kWh, kcal, cal, BTU, therm, eV
- Power Converter – W, kW, MW, hp, PS, BTU/h, TR, kcal/h
- Force Converter – N, kN, lbf, kgf, kip, dyn, ozf, gf
- Area Converter – m², cm², mm², ft², in², test areas
- Volume Converter – L, mL, m³, ft³, in³, US gal, imp gal
- Time Converter – ms, s, min, h, day
- Angle Converter – degrees, radians, gradians, arcminutes
- Speed Converter – km/h, mph, m/s, ft/s, knots
- Fuel Economy Converter – mpg (US, UK), L/100 km, km/L
- Data Storage Converter – bytes, KB, MB, GB, TB, KiB, MiB, GiB
- Data Transfer Rate Converter – Mbps, MB/s, Gbps, kbps, MiB/s
Engineering Converters
- Torque Converter – N·m, lbf·ft, lbf·in, kgf·cm, kgf·m, ozf·in
- Density Converter – kg/m³, g/cm³, g/mL, lb/ft³, lb/gal, mg/L
- Pressure Converter – Pa, kPa, psi, bar, inH₂O, mmHg, torr, atm
- Frequency & RPM Converter – Hz, kHz, MHz, GHz, rpm, rad/s
Heat Converters
- Thermal Expansion Coefficient Converter – 1/K, 1/°C, 1/°F, ppm/K, ppm/°F
- Thermal Conductivity Converter – W/(m·K), mW/(m·K), BTU/(h·ft·°F), k-value, kcal/(h·m·°C)
- Heat Transfer Coefficient Converter – W/(m²·K), BTU/(h·ft²·°F), kcal/(h·m²·°C), U-value
Fluids Converters
- Dynamic Viscosity Converter – Pa·s, mPa·s, cP, P, lbf·s/ft²
- Kinematic Viscosity Converter – m²/s, mm²/s, cSt, St, ft²/s
- Flow Rate Converter – CFM, m³/h, L/min, L/s, GPM, sccm, SLPM
Filtration & Permeability Converters
- Face Velocity & Air Permeability Converter – CFM/ft², L/(m²·s), mm/s, cm/s, ft/min
Materials & Metallurgy Converters
- Corrosion Rate Converter – mpy, mm/y, µm/y, ipy
Textiles Converters
- Yarn Count Converter – tex, dtex, denier, Ne, Nm, worsted
- Yarn Twist Converter – TPI, TPM, turns/cm, turns/ft
- Fabric Weight (GSM) Converter – GSM, oz/yd², oz/ft², g/cm², lb/yd²
Light Converters
- Illuminance Converter (Lux, Foot-candle) – lux, foot-candles, klx, phot
- Luminance Converter (Nits, cd/m²) – nits, cd/m², foot-lamberts, stilb
Electricity Converters
- Electrical Resistivity Converter – Ω·m, Ω·cm, µΩ·cm, Ω·mm²/m, MΩ·cm
- Electrical Conductivity Converter – S/m, MS/m, µS/cm, mS/cm, dS/m, %IACS
Magnetism Converters
- Magnetic Flux Density Converter – T, mT, µT, nT, G, mG, kG
- Magnetic Field Strength Converter – A/m, kA/m, A/cm, Oe, kOe
- Magnetic Flux Converter – Wb, mWb, µWb, Mx
Radiology Converters
- Radioactivity Converter – Bq, MBq, Ci, mCi, µCi, pCi, dpm
- Absorbed Radiation Dose Converter – Gy, mGy, cGy, rad, kGy
- Radiation Dose Converter (Sv, rem) – Sv, mSv, µSv, rem, mrem
Converter Tools
- Mesh to Micron Converter – US sieve number (mesh) ↔ opening in µm, mm and inches, with the full ASTM E11 table.
- Bulk Unit Converter – Paste a column or table from Excel, convert every value, copy back or download CSV.