How it works
- 1Choose a measurement category such as length, mass or temperature.
- 2Enter a value and choose the source and target units.
- 3Read the converted value instantly; use Swap or a popular conversion shortcut when useful.
← All tools
BROWSER · local-unit-conversion
Unit Converter
Convert length, area, mass, volume, temperature, speed, time, pressure, energy, power, data, frequency, angle, force and acceleration instantly in your browser.
✓ Runs entirely in the browser✓ 15 conversion categories✓ Metric and imperial units
Converted value
—
Conversion: —
Popular conversions
Also searched as:Unit conversion calculatorMeasurement converterMetric converterImperial converterUnits calculator
About this tool
A free unit converter, measurement converter and metric-to-imperial calculator covering common scientific and everyday units. Conversions run locally in the browser with no upload or API request.
Frequently asked questions
Does this unit converter work offline after the page loads?
Yes. All conversion factors and formulas are included in the browser code, so no external conversion API is required.
Can it convert Celsius and Fahrenheit?
Yes. Temperature uses formula-based conversions for Celsius, Fahrenheit, Kelvin and Rankine.
Are inch, foot and pound conversions exact?
Where international definitions provide exact constants, the tool uses those exact constants, such as 1 inch = 0.0254 metre and 1 pound = 0.45359237 kilogram.