Miles to kilometres converter
Kilometres (km)
1 mile = 1.609344 kilometres
How to convert miles to kilometres
km = mi × 1.609344
Multiply the number of miles by 1.609344 to get kilometres. Going the other way, divide by 1.609344 (or multiply by 0.621371192237).
One mile is exactly defined as 1.609344 kilometres (to 12 significant figures), and one kilometre is 0.621371192237 miles.
Worked examples
- Convert 5 miles: 5 × 1.609344 = 8.04672 8.04672 kilometres.
- Convert 12.5 miles: 12.5 × 1.609344 = 20.1168 20.1168 kilometres.
- Convert 250 miles: 250 × 1.609344 = 402.336 402.336 kilometres.
Quick-reference table
| mi | km |
|---|---|
| 1 | 1.609344 |
| 2 | 3.218688 |
| 3 | 4.828032 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 15 | 24.14016 |
| 20 | 32.18688 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 75 | 120.7008 |
| 100 | 160.9344 |
| 1,000 | 1,609.344 |
| km | mi |
|---|---|
| 1 | 0.6213711922 |
| 2 | 1.242742384 |
| 3 | 1.864113577 |
| 5 | 3.106855961 |
| 10 | 6.213711922 |
| 15 | 9.320567884 |
| 20 | 12.42742384 |
| 25 | 15.53427981 |
| 50 | 31.06855961 |
| 75 | 46.60283942 |
| 100 | 62.13711922 |
| 1,000 | 621.3711922 |
Related conversions
Frequently asked questions
How many kilometres are in 1 mile?
1 mile equals 1.609344 kilometres.
What is the formula to convert miles to kilometres?
Use km = mi × 1.609344. Multiply the number of miles by 1.609344 to get kilometres. Going the other way, divide by 1.609344 (or multiply by 0.621371192237).
What is 100 miles in kilometres?
100 miles is 160.9344 kilometres.