Kilometers to miles conversion table
| Kilometers | Miles |
|---|---|
| 1 km | 0.6214 mi |
| 2 km | 1.2427 mi |
| 3 km | 1.8641 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 15 km | 9.3206 mi |
| 20 km | 12.4274 mi |
| 21.0975 km | 13.1094 mi |
| 25 km | 15.5343 mi |
| 30 km | 18.6411 mi |
| 42.195 km | 26.2188 mi |
| 50 km | 31.0686 mi |
| 60 km | 37.2823 mi |
| 80 km | 49.7097 mi |
| 100 km | 62.1371 mi |
| 120 km | 74.5645 mi |
| 150 km | 93.2057 mi |
| 200 km | 124.2742 mi |
| 300 km | 186.4114 mi |
| 500 km | 310.6856 mi |
| 1,000 km | 621.3712 mi |
How to convert kilometers to miles
mi = km ÷ 1.609344 ≈ km × 0.621371
Example: 10 km ÷ 1.609344 = 6.2137 miles — the distance of a 10K race.
Mental math: km to miles
- Multiply by 6, then divide by 10: 80 km × 6 = 480 → 48 miles (exact: 49.7).
- Halve it and add 10%: 100 km → 50 + 10 = 60 miles (exact: 62.1).
- Fibonacci trick in reverse: 8 km ≈ 5 mi, 13 km ≈ 8 mi, 21 km ≈ 13 mi.
Race distances in miles
Most running races are named in kilometers: a 5K is 3.107 miles, a 10K is 6.214 miles, a half marathon (21.0975 km) is 13.109 miles and a marathon (42.195 km) is 26.219 miles.
Driving abroad: km on signs, miles in your head
Outside the US and UK, road signs show kilometers and km/h. 100 km is about 62 miles; a sign saying “Paris 250” means roughly 155 miles. For speed limits use the km/h to mph converter.
Frequently asked questions
How many miles is 1 km?
One kilometer equals 0.621371 miles.
How many miles is 10 km?
10 km is 6.2137 miles.
How many miles is 100 km?
100 km is 62.1371 miles.
What is the formula for km to miles?
Divide kilometers by 1.609344, or multiply by 0.621371.