How to convert kilometers to miles
Divide the distance in kilometers by 1.609344, or multiply by 0.621371. For example, 10 km ÷ 1.609344 = 6.214 mi and 100 km = 62.14 mi. The same factor converts speeds: 100 km/h is 62.1 mph.
The “Also equals” panel shows the distance in meters, feet and yards. Use the ⇄ button to switch to miles to km.
Kilometers to miles chart
| Kilometers | Miles | Common reference |
|---|---|---|
| 1 km | 0.62 mi | |
| 2 km | 1.24 mi | |
| 3 km | 1.86 mi | |
| 5 km | 3.11 mi | 5K race |
| 10 km | 6.21 mi | 10K race |
| 15 km | 9.32 mi | |
| 20 km | 12.43 mi | |
| 21.1 km | 13.11 mi | Half marathon |
| 25 km | 15.53 mi | |
| 30 km | 18.64 mi | |
| 40 km | 24.85 mi | |
| 42.2 km | 26.22 mi | Marathon |
| 50 km | 31.07 mi | |
| 60 km | 37.28 mi | |
| 80 km | 49.71 mi | |
| 100 km | 62.14 mi | 100 km/h speed limit |
| 120 km | 74.56 mi | 120 km/h speed limit |
| 130 km | 80.78 mi | 130 km/h speed limit |
| 200 km | 124.27 mi | |
| 500 km | 310.69 mi |
Where you will use this conversion
- Running: a 5K is 3.11 miles and a 10K is 6.21 miles
- Driving in Canada or Europe: 100 km/h is 62.1 mph and 130 km/h is 80.8 mph
- Cycling and hiking routes listed in kilometers
- Travel distances between cities
- Fitness trackers and GPS watches set to metric
Good to know
For a quick estimate, multiply kilometers by 0.6, or think “5 miles is 8 km”: 50 km is about 30 miles, against an exact 31.1 miles. The estimate runs about 3% low, so use the converter for anything that needs to be precise. To go the other way, see miles to kilometers.
Frequently asked questions
How many miles are in a kilometer?
One kilometer equals about 0.621371 miles. To convert, multiply kilometers by 0.621371 or divide by 1.609344.
How many miles is 5 km and 10 km?
5 km is 3.11 miles and 10 km is 6.21 miles.
What is 100 km/h in mph?
100 km/h is 62.1 mph. A 120 km/h limit is 74.6 mph.
How many miles is a marathon in kilometers?
A marathon is 42.195 km, which is 26.22 miles. It is often rounded to 42.2 km or 26.2 miles.