| Distance | In feet |
|---|---|
| 1⁄4 mile | 1,320 lin ft |
| 1⁄2 mile | 2,640 lin ft |
| 1 mile | 5,280 lin ft |
| 1 mile, both sides | 10,560 lin fte.g. road curb |
| Square-mile perimeter | 21,120 lin ft4 × 5,280 |
| 2 miles | 10,560 lin ft |
A linear foot measures length along one line. A square foot measures area (length × width), and a cubic foot measures volume. For a run of fence or pipe you only care about length — so a mile is 5,280 linear feet, full stop.
Fencing, guardrail, curb, cabling, and trenching are all quoted in linear feet. Knowing a mile is 5,280 lin ft lets you scale fast: a mile of fence with posts every 8 ft needs about 660 posts, and edging both sides of a mile of road is 10,560 lin ft.