Units measure the same quantities in different ways, such as metres and feet. Converters move between them so you can follow instructions and compare products from any country.

What you will find in Unit Converters

Provides converters for length, area, volume, weight, temperature and speed, including a page for every pair of length and volume units.

How to use these tools

Pick the kind of unit.
Enter a value and choose the units.
Read the converted value.

Did you know?

Since 1983 the metre has been defined as the distance light travels in 1/299,792,458 of a second.
A US gallon is about 3.785 litres, while an imperial gallon is about 4.546 litres.