Unit Converter
Fast, accurate conversions across 75 categories — length, weight, temperature, volume, and more.
Common
13Mechanics
9Fluids
10Heat
10Light
4Electricity
15Magnetism
4Radiology
4Other
6Popular conversions
psi to barbar to psipsi to kPakPa to psiMPa to psipsi to MPaksi to MPaBTU/h to tonmmHg to kPaNm to ft-lbft-lb to Nmoz-in to Nmkgf-m to NmNm to in-lbin-lb to NmkW to hphp to kWkW to BTU/hkWh to JBTU to kWhkcal to kJL/min to GPMGPM to L/minGPM to m³/hCFM to m³/hkg/h to lb/hN to kgfN to lbfMbps to MB/sMB/s to MbpsGbps to MbpsMB to GBGB to TBkm/h to mphmph to km/hknots to km/h°C to °F°F to °Clx to fcfc to lxcP to Pa·sPa·s to cPcSt to mm²/sT to GG to TµT to mGW/m·K to BTU/h·ft·°FBTU/h·ft·°F to W/m·KW/m²·K to BTU/h·ft²·°Fkg/m³ to g/cm³g/cm³ to lb/ft³µF to nFnF to pFmH to µHBq to CiSv to rem° to radrad to °m/s² to grpm to rad/srad/s to rpm
About Unit Converter
A unit converter changes a measurement from one unit to another. Pick a category — length, weight, temperature, data, area, speed, and 75+ more, including engineering and scientific units like pressure, torque, and viscosity — enter a value, and get an accurate conversion instantly. It runs in your browser with no sign-up and nothing to install.
Frequently asked questions
- How many unit categories are supported?
- Over 75, from everyday units (length, mass, temperature, volume, area, speed, data storage) to technical and scientific ones (energy, pressure, torque, viscosity, molar concentration, luminance, and more).
- Does it convert engineering and scientific units?
- Yes. Alongside common units it covers engineering and scientific categories — force, pressure, torque, thermal, flow, radiology, and CSS/typography units — with precise conversion factors.
- Are the conversions accurate?
- Yes. Conversions use standard factors and precise formulas, including non-linear ones like temperature, so results are exact.
- Do I need to install an app?
- No download needed — it's a free web app that runs in any modern browser on phone, tablet, or desktop, with nothing to install and nothing sent anywhere.
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