Miles (mi) and Feet (ft) explained
Both units belong to the imperial and US customary system, so this conversion is exact and involves no metric factor at all. The foot is 12 inches, or exactly 0.3048 meters since 1959. The mile is 1,760 yards, and since a yard is three feet, that is 5,280 feet. The strange figure comes from an English compromise in 1593: the Roman mile of 5,000 feet was reconciled with the farming furlong — the length of a ploughed furrow — by rounding the mile up to eight furlongs rather than redefining the furlong. Surveyors, athletics officials and aviators all still work in this system.
Formula and worked examples
ft = mi × 5280Multiply miles by 5,280. A quarter mile is 1,320 feet, which is why drag racing is run over that distance. Half a mile is 2,640 feet. Three miles is 15,840 feet. Because both units are imperial, the result is always exact for whole and simple fractional inputs — no rounding is involved.
Miles (mi) to Feet (ft) conversion table
Common Miles (mi) values converted to Feet (ft). Every figure uses the same conversion factor as the calculator above.
| Miles (mi) | Feet (ft) |
|---|---|
| 1 | 5280 |
| 2 | 10560 |
| 5 | 26400 |
| 10 | 52800 |
| 20 | 105600 |
| 50 | 264000 |
| 100 | 528000 |
Where you will use this
Athletics and track distances
A standard outdoor track lap is 400 meters, slightly short of a quarter mile (1,320 feet, or 402.34 m). The difference is why a "mile" race on a 400 m track is run over four laps plus an extra nine meters.
Aviation altitude and distance
Aircraft altitudes are given in feet while distances are often in statute or nautical miles. A cruising altitude of 35,000 feet is 6.63 statute miles straight up, which puts the scale of a climb in perspective.
Surveying and property frontage
US land descriptions still use chains, furlongs and miles. A parcel with a quarter-mile frontage has 1,320 feet of road edge, the number you need for fencing quantities or utility run costs.