In this math worksheet, you'll use a handy metric conversion table to convert different measurements involving common units of length, such as millimeters, centimeters, meters, and kilometers. Once you've mastered converting between these units, you'll apply your knowledge by comparing different measurements.

Kids can convert between metric units like millimeters (mm), centimeters (cm), meters (m), and kilometers (km) by understanding the relationship between these units, which are all based on powers of ten. To convert from a larger unit to a smaller unit, they multiply by the appropriate power of ten. For example, to go from meters to centimeters, they multiply by 100 because there are 100 centimeters in a meter. Conversely, to convert from a smaller unit to a larger one, they divide by the power of ten: for example, to go from millimeters to meters, they divide by 1,000 because there are 1,000 millimeters in a meter.