Unit Converter › Guides › Kilometers to Miles (km to mi)
Convert kilometers to miles with the exact factor defined by NIST (1.609344), a ready table and worked examples.
One mile is exactly 1.609344 km, so one kilometer is about 0.621371 mi.
Miles = Kilometers ÷ 1.609344. To convert kilometers to miles, divide by 1.609344.
| Kilometers | Miles |
|---|---|
| 1 | 0.621 |
| 3 | 1.864 |
| 5 | 3.107 |
| 10 | 6.214 |
| 15 | 9.321 |
| 20 | 12.427 |
| 21.098 | 13.109 |
| 30 | 18.641 |
| 42.195 | 26.219 |
| 50 | 31.069 |
| 80 | 49.71 |
| 90 | 55.923 |
| 100 | 62.137 |
| 120 | 74.565 |
| 130 | 80.778 |
| 200 | 124.274 |
| 500 | 310.686 |
| 1,000 | 621.371 |
Values are rounded to 3 decimal places for display. The factor itself is exact, so any rounding comes only from the last digit shown.
A 5K run is 3.107 mi. A 130 km/h motorway limit is 80.778 mph.
100 ÷ 1.609344 = 62.137 mph.
Last checked: 29 October 2026.