Introduction to US Units of Measurement

Measurement is a number that describes the size or amount of something. You can measure many things like length, area, capacity, weight, temperature and time. In the United States, two main systems of measurement are used: the metric system and the U.S. customary measurement system.

In this section we will explore units for length, weight, and capacity, as well as solve problems that involve converting between different units of length, weight or capacity.