Miles to KM formula
1 mile = 1.609344 kilometres, and 1 kilometre = 0.6213711922 miles. 1,760 yards, exactly 1,609.344 m.
Miles to KM chart
| Miles (mi) | Kilometres (km) |
|---|---|
| 1 | 1.6093 |
| 2 | 3.2187 |
| 3 | 4.828 |
| 4 | 6.4374 |
| 5 | 8.0467 |
| 6 | 9.6561 |
| 7 | 11.2654 |
| 8 | 12.8748 |
| 9 | 14.4841 |
| 10 | 16.0934 |
| 13.1 | 21.0824 |
| 15 | 24.1402 |
| 20 | 32.1869 |
| 25 | 40.2336 |
| 26.2 | 42.1648 |
| 30 | 48.2803 |
| 40 | 64.3738 |
| 50 | 80.4672 |
| 60 | 96.5606 |
| 75 | 120.7008 |
| 100 | 160.9344 |
| 150 | 241.4016 |
| 200 | 321.8688 |
| 250 | 402.336 |
| 500 | 804.672 |
| 1,000 | 1,609.344 |
Values are rounded to 4 decimal places. The converter above shows more precision.
Worked examples
A 250-mile road trip
250 mi × 1.609344 = 402.336 km
250 miles = 402.336 kilometres. A long day at the wheel. In kilometres it is just over 400, the figure you would see on a route planner set to metric.
A 3-mile daily walk
3 mi × 1.609344 = 4.828 km
3 miles = 4.828 kilometres. About 4.8 km. At a brisk 5 km an hour, that takes just under an hour.
Converting miles to kilometres in real life
Miles are still the road unit in the US and the UK, so distances on maps, road signs, car odometers and fitness trackers set to US settings all come in miles. If you plan a trip abroad, compare fuel economy, or log your weekly running in an app that uses kilometres, you need this conversion.
Multiplying by 1.6 is less than 1% off: 100 miles comes out as 160 km instead of 160.93 km. For anything that counts, like a route plan or a race entry, use the full factor. Do not confuse the land mile with the nautical mile used at sea and in the air, which is longer (1.852 km); the length converter handles both.