UnitFlip
100% in-browser · no sign-up

Convert any unit, instantly

UnitFlip converts length, weight, temperature, volume, and dozens of other measurements. Type what you need in plain language.

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Every converter works offline-ready and updates as you type.

Length Convert meters, feet, inches, miles, and more. Weight & Mass Convert kilograms, pounds, ounces, grams, and tons. Temperature Convert Celsius, Fahrenheit, and Kelvin. Area Convert square feet, square meters, acres, and hectares. Volume Convert liters, gallons, cups, milliliters, and more. Speed Convert mph, km/h, m/s, and knots. Time Convert seconds, minutes, hours, days, and years. Pressure Convert pascal, bar, psi, and atmospheres. Energy Convert joules, calories, kilowatt-hours, and BTU. Power Convert watts, kilowatts, and horsepower. Force Convert newtons, pound-force, and kilogram-force. Angle Convert degrees, radians, and gradians. Fuel Economy Convert MPG, km/L, and L/100 km. Data Storage Convert bytes, KB, MB, GB, and binary KiB, MiB, GiB. Frequency Convert hertz, kilohertz, megahertz, and RPM. Density Convert kg/m³, g/cm³, and lb/ft³. Acceleration Convert m/s², g-force, and ft/s². Torque Convert N·m, lbf·ft, and lbf·in. Flow Rate Convert L/min, gal/min, m³/s, and CFM. Electric Current Convert amperes, milliamperes, and kiloamperes. Voltage Convert volts, millivolts, and kilovolts. Data Transfer Convert Mbps, MB/s, Gbps, and more.

Built for accuracy and privacy

Every conversion factor comes from published standards, not guesswork, and the same data drives both the calculator and the explanations you read. Results are computed on your device — your numbers never leave your browser and nothing is stored on a server.

  • Exact factors. Based on SI and internationally agreed definitions.
  • Clear formulas. Every page shows how the result is calculated.
  • No accounts. No sign-up, no tracking of your inputs.
  • Works on any device. Mobile-first, keyboard friendly, dark mode.