Unit Converter
Convert between units of length, weight, temperature, volume and area in an instant. All calculation happens on your device.
How to convert units
- Pick a category such as Length, Weight or Temperature.
- Choose the unit you are converting from and the unit you are converting to.
- Type a value and the converted result updates instantly.
- Copy the result when you are done.
FAQs
Which units can I convert between?
The converter covers length, weight, temperature, volume and area, including metric, imperial and US customary units such as meters, miles, kilograms, pounds, liters and gallons.
How is temperature conversion handled?
Celsius, Fahrenheit and Kelvin are not simple ratios, so the tool applies the correct formulas rather than a fixed multiplier to give an exact result.
Are the results rounded?
Yes. Results are rounded to six decimal places to remove floating-point noise while keeping them precise enough for everyday use.
Is the unit converter free?
Yes. Every Handio tool is free and runs entirely in your browser, with no sign-up and no data uploads.
Related Tools
Why use a unit converter?
Different regions and industries use different measurement systems. A converter removes the mental math and lets you switch between units accurately in seconds.
- Convert a recipe from cups to milliliters or grams to ounces.
- Turn a distance in kilometers into miles for a trip abroad.
- Check a weight, area or temperature against a unit system you are more familiar with.
Tips and Limits
Type the value and change any select to see the result update live. The conversion uses standard international definitions, and everything is computed on your device with nothing uploaded.