Kilometers to Miles (km to mi)
A kilometer is about 0.6214 miles; the exact factor is 1 ÷ 1.609344, because an international mile is exactly 1,609.344 meters.
Miles
0.621371
Formula
miles = kilometers × 0.621371
Example: 5 kilometers = 3.10686 miles.
Kilometers to Miles chart
| kilometers | miles |
|---|---|
| 1 | 0.621371 |
| 2 | 1.24274 |
| 3 | 1.86411 |
| 5 | 3.10686 |
| 8 | 4.97097 |
| 10 | 6.21371 |
| 15 | 9.32057 |
| 20 | 12.4274 |
| 21.0975 | 13.1094 |
| 25 | 15.5343 |
| 42.195 | 26.2188 |
| 50 | 31.0686 |
| 80 | 49.7097 |
| 100 | 62.1371 |
| 160 | 99.4194 |
| 200 | 124.274 |
Good to know
Running race distances: 5K = 3.11 mi, 10K = 6.21 mi, half marathon (21.0975 km) = 13.11 mi, marathon (42.195 km) = 26.22 mi.
A handy estimate uses the Fibonacci numbers: 5 km ≈ 3 mi, 8 km ≈ 5 mi, 13 km ≈ 8 mi, because consecutive Fibonacci numbers are close to the 1.609 ratio.
Frequently asked questions
How many miles is 1 km?
0.621371 miles.
How many miles is a 5K?
5 km is 3.107 miles.
How many miles is 100 km?
100 km is 62.14 miles.