Mile (mi)
The mile (mi) is 5280 feet, exactly 1609.344 metres. It is the road-distance unit in the United States and United Kingdom.
Symbol: mi
Quantity: length and distance
SI relation: 1 mi = 1609.344 m (exact)
Derivation: 1 mi = 5280 ft = 5280 × 0.3048 m = 1609.344 m
Exact: yes, by definition
Reference conditions. The international yard and pound agreement (1959) fixed 1 yard = 0.9144 m exactly, so the inch, foot and mile are exact.
Typical uses
- Road distances and speed limits (mph) in the US and UK
- Running (a mile race, marathon = 26.2 mi)
- Vehicle range and fuel economy (mpg)
Convert miles to other units
| Conversion | 1 mi equals | Reverse |
|---|---|---|
| mile to meter | 1609.344 m | meter to mile |
| mile to kilometer | 1.609344 km | kilometer to mile |
| mile to centimeter | 160934.4 cm | centimeter to mile |
| mile to millimeter | 1609344 mm | millimeter to mile |
| mile to foot | 5280 ft | foot to mile |
| mile to inch | 63360 in | inch to mile |
| mile to micrometer | 1609344000 µm | micrometer to mile |
| mile to nanometer | 1609344000000 nm | nanometer to mile |
| mile to yard | 1760 yd | yard to mile |
| mile to nautical mile | 0.8689762419 nmi | nautical mile to mile |
| mile to angstrom | 16093440000000 Å | angstrom to mile |
| mile to mil | 63360000 mil | mil to mile |
Open the Length Converter to convert any value between all units.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "mile (based on the international foot)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Mile (mi). Retrieved October 17, 2026, from https://scientificconverters.com/units/mile/
IEEE
Scientific Converters, "Mile (mi)," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/units/mile/