A mile is exactly 5,280 feet. Multiply miles by 5,280 to get feet, or divide feet by 5,280 to get miles.

1. ¼ mile = 1,320 feet
2. ½ mile = 2,640 feet
3. 1½ miles = 7,920 feet

Four laps on a standard 400-meter track total 1,600 meters. A mile is 1,609.344 meters, so the difference is a little over nine meters. Use a marked mile start when the track has one. A nautical mile is a separate unit used in navigation. The 5,280-foot conversion is for the ordinary land mile.