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Convert mi to ft
1 mi = 5280 ft
Type a value in miles and the answer in feet appears as you go. The conversion is exactly 5280 ft to the mile, and it happens on your own machine — this page asks nothing of a server once it has loaded.
Where it runs
In your browser. The number you type is never part of a request.
Exact by definition
1 mi is exactly 5280 ft — a definition, not a rounded factor.
Answers as you type
No button, no wait. The worked answer is already on the page before any script runs.
Mile and Foot
A mile is 1,760 yards — a number that comes from a Roman thousand paces, adjusted by an Elizabethan statute to fit the furlong. It is exactly 1,609.344 metres.
A foot is twelve inches, and it is the unit heights and room sizes are quoted in across the United States. Aviation uses it worldwide for altitude, including in countries that use metres for everything else.
miles to feet in practice
26.219 mi is 138400 ft
— a marathon.
3 mi is 15840 ft
— a short commute.
miles to feet at a glance
| mi | ft |
|---|---|
| 1 | 5280 |
| 2 | 10560 |
| 3 | 15840 |
| 5 | 26400 |
| 10 | 52800 |
| 20 | 105600 |
| 50 | 264000 |
| 100 | 528000 |
Every figure here is computed from the same definition the calculator uses, so the table cannot drift away from the answer above it.
Convert mi to ft: common questions
How many feet are in a mile?
Exactly 5280. One mile is 5280 feet, and the box above will do it for any figure you type.
Is this conversion exact, or rounded?
The ratio is exact. It is not a rounded constant typed into a table: it is derived from the definitions of the two units, so it agrees with any other correct converter to as many digits as you care to compare.
Why does another converter show a slightly different number?
Almost always rounding rather than disagreement. Many converters cut the answer to two or four decimals, and some carry a factor that was rounded before the multiplication rather than after. The figures here are computed from the exact definitions and only rounded on the way to the screen.
Where these figures come from
The claims this page makes about length units are checkable, and these are the documents that settle them.
How this page works
The factor is a constant in the page and the arithmetic is four operations, so nothing is sent anywhere and nothing needs to be. The number you type never leaves the browser — there is no request for it to travel in.