Unit Converter
Convert length, weight, temperature, speed, volume and area units.
How to Use the Unit Converter
This all-in-one tool converts between units of length, weight, temperature, speed, volume and area in real time.
- Choose a category — click one of the tabs at the top: Length, Weight, Temperature, Speed, Volume or Area.
- Select the "From" unit — pick the unit you are converting from in the first dropdown.
- Enter a value — type any number into the input field. The result updates instantly as you type.
- Select the "To" unit — pick the target unit in the second dropdown.
- Swap units — click the swap button between the two sections to flip the conversion direction.
- Copy the result — click Copy to copy the converted value to your clipboard.
All conversions run entirely in your browser. No data is sent to any server.
Frequently Asked Questions
How do I convert kilometers to miles?
Select the Length category, choose Kilometer in the "From" dropdown, Mile in the "To" dropdown and enter your value. 1 kilometer equals approximately 0.621371 miles.
How does the temperature conversion work?
Temperature uses special formulas instead of simple multiplication. Celsius to Fahrenheit: multiply by 9/5 and add 32. Celsius to Kelvin: add 273.15. The tool handles these automatically.
What is the difference between a metric ton and a US ton?
A metric ton (tonne) equals 1,000 kilograms (about 2,204.6 pounds). A US ton (short ton) equals 2,000 pounds (about 907.2 kilograms). The metric ton is about 10% heavier.
Are the volume units US or imperial?
All volume units in this tool use US customary measurements. For example, 1 US gallon equals 3.785 liters, while 1 imperial gallon equals 4.546 liters.
Why are there small rounding differences?
Computers use floating-point arithmetic, which can introduce tiny rounding errors beyond about 15 significant digits. For everyday use these differences are negligible.
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