Kilometers to Miles Converter
Convert km to mi instantly — type in either box and the answer appears as you type.
1 km = 0.62137 mi
10 km = 6.21 mi
The formula
miles = kilometers × 0.621371
Example: 10 km × 0.621371 = 6.21 mi. To convert back, multiply mi by 1.6093.
km to mi conversion table
| Kilometers | Miles |
|---|---|
| 1 | 0.62 |
| 5 | 3.11 |
| 10 | 6.21 |
| 21.1 | 13.11 |
| 42.2 | 26.22 |
| 50 | 31.07 |
| 100 | 62.14 |
When do you convert km to miles?
Kilometers-to-miles is the runner's and road-tripper's conversion: a 10K race is 6.21 miles, a marathon's 42.195 km is 26.2 miles, and European highway distances become American ones with the quick 'multiply by 0.6' rule. Car speedometers in Canada and the UK show both units side by side.
How do you convert km to mi?
Use the formula miles = kilometers × 0.621371. For example, 10 km × 0.621371 = 6.21 mi. In reverse, mi to km divides by 0.621371 (mi × 1.6093 = km).
What is 10 km in mi?
10 km equals 6.21 mi.
When do you convert km to miles?
Kilometers-to-miles is the runner's and road-tripper's conversion: a 10K race is 6.21 miles, a marathon's 42.195 km is 26.2 miles, and European highway distances become American ones with the quick 'multiply by 0.6' rule. Car speedometers in Canada and the UK show both units side by side.