Calculation
Unit Converter
Pick a common conversion or a full category, type a value, then choose the unit to convert from and the unit to convert to. The result updates as you change either list, and every other unit in that category is shown beside it.
Quick start
- 1
Choose a category or a shortcut
Shortcuts cover common pairs such as cm to in, kg to lb, °C to °F, and km to mi.
- 2
Type the value
Enter the number you want to convert.
- 3
Pick both units
Choose the unit to convert from and the unit to convert to.
- 4
Read the list
Swap direction if you need the reverse. Every other unit in the category is shown beside the result.
Features
Two unit lists
Choose the source unit and the target unit from the same category, the same way a full unit converter works.
Swap direction
Reverse the conversion and keep the result as the new starting value.
Whole category
See the entered value expressed in every unit of the selected category.
Specifications
- Categories
- Length, mass, volume, temperature, area, pressure
- Also
- Energy, power, force, time, speed, angle, data
- Shortcuts
- cm to in, kg to lb, °C to °F, km to mi
- Privacy
- Processed on the toolbox API
Use cases
- Convert a measurement for a spec.
- Switch temperature scales.
- See one value across a whole unit category.
Frequently asked questions
Does swap lose the number I typed?
Swap reverses the direction and keeps the current result as the new starting value.