About the Unit Converter
Convert common length, weight, temperature and volume measurements as you type. Choose a category, enter a value and select the source and destination units. The swap button reverses the conversion without making you re-enter the result.
Metric, US and UK measurements
Length and weight units such as inches, feet, miles, ounces and pounds are shared across common US and UK use. Volume needs more care: US and UK fluid ounces, pints and gallons are different sizes, so every regional version is clearly labelled in the unit menu.
Conversion accuracy
The converter uses fixed definitions stored in TypeScript, including exact international definitions where available. Results show up to 12 significant digits to stay useful without filling the page with floating-point noise. No API or network request is involved.
FAQ
Are US and UK gallons the same?
No. One US gallon is 3.785411784 litres, while one UK imperial gallon is 4.54609 litres. The converter labels each system separately.
Which measurement systems are supported?
The converter includes common metric units and widely used US customary and UK imperial units for length, weight and volume, plus Celsius, Fahrenheit and Kelvin.
Are conversions sent to a server?
No. Conversion definitions are built into the page and every calculation runs locally in your browser.