U.S. Customary Units
| 12 inches | 1 foot |
| 3 feet | 1 yard |
| 5,280 feet | 1 mile |
| 1,760 yards | 1 mile |
Metric System
| 10 millimeters | 1 centimeter |
| 10 centimeters | 1 decimeter |
| 10 decimeters | 1 meter |
| 1,000 meters | 1 kilometer |
