Length is measured using either a meter stick or an English ruler. In the metric system, units of length are based on factors of 10. The meter is the basic unit of length in the metric system. One meter is equivalent to 1000 millimeters, for example, while there are 1000 meters in a kilometer.
The units of length in the English system have their own distinct names and symbols, such as the inch, the foot, and the mile.
Let's play a game to help you learn the names of the length units in the British and metric systems, along with their symbols.