How to use this tool
- Pick the kind of measurement: length, weight, temperature and so on.
- Type a value and choose the unit you are converting from and to.
- The answer appears at once, and the table lists the value in every other unit.
KM to miles chart
| km | Miles |
|---|---|
| 1 | 0.62 |
| 5 (5K run) | 3.11 |
| 10 (10K run) | 6.21 |
| 21.1 (half marathon) | 13.11 |
| 42.2 (marathon) | 26.22 |
| 100 | 62.14 |
Speed: km/h to mph
The same factor works for speed: 100 km/h is about 62 mph and 120 km/h is about 75 mph. Switch the converter to Speed for exact figures. Car speedometers sold in the UK and US show mph first, while those in Pakistan, India and Europe show km/h.
Frequently asked questions
How many miles is 1 km?
0.6214 miles.
How many miles is a 10K?
6.21 miles.
How do I convert miles to km?
Multiply by 1.609, or use the miles to km converter.
Need more detail? See the full Unit Converter guide.
Sources and references
- NIST Handbook 44 Appendix C: General tables of units of measurement
- BIPM: The International System of Units (SI Brochure)