Unit Converter

This tool converts length, mass, temperature, data size, speed and area between common units. Pick a category, enter a value, and choose the source and target units.

Temperature uses offset formulas rather than simple multiplication, because scales like Celsius and Fahrenheit do not share a zero point. The tool applies the correct formula so the result is accurate.

Data size conversions follow the units you select, so you can move between values like kilobytes and megabytes. Be mindful that some contexts use powers of 1000 and others powers of 1024.

Yes. All conversions run in your browser, so the values you enter are never uploaded. It works offline once the page has loaded.

Many conversions produce long decimals, so the output is rounded for readability while the underlying calculation stays precise. You can usually read enough significant figures for practical use.

Yes. Within a category such as length or mass, you can convert between metric and imperial units, for example metres to feet or kilograms to pounds.

The tool uses standard conversion factors, so results are accurate to the precision shown. Any small differences come only from rounding the displayed figure.