How to Use the Unit Converter

Select a category, enter the value, choose the original unit and the target unit, then press Convert Units.

Common Conversion Examples

1 kilometer = 1,000 meters.

1 kilogram = 1,000 grams.

0 degrees Celsius = 32 degrees Fahrenheit.

1 liter = 1,000 milliliters.

Frequently Asked Questions

Is this unit converter free?
Yes. The calculations run directly in your browser.

Can I convert negative temperatures?
Yes. Negative Celsius and Fahrenheit temperatures are supported.

Are US and UK gallons the same?
No. This calculator uses the US liquid gallon. The imperial gallon used in the UK is different.

How accurate are the results?
The calculator uses standard conversion factors and displays up to 10 decimal places where needed. Display rounding does not change the underlying formula.