KM to Miles Converter
Convert kilometers to miles and back instantly. Type in either box — the other updates as you go.
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The Conversion Factor
1 kilometer = 0.621371 miles and 1 mile = 1.609344 kilometers. To convert in your head:
- km → miles: multiply by 0.62 (or roughly ÷ 1.6)
- miles → km: multiply by 1.61 (or roughly × 1.6)
A quick mental trick: miles are about ⅝ of a kilometer, so 5 miles ≈ 8 km.
KM to Miles Reference Table
| Kilometers | Miles |
|---|---|
| 1 km | 0.62 mi |
| 5 km | 3.11 mi |
| 10 km | 6.21 mi |
| 21.1 km (half marathon) | 13.11 mi |
| 42.2 km (marathon) | 26.22 mi |
| 100 km | 62.14 mi |
Measure Distances in Either Unit
Distance Map shows every route in both kilometers and miles — switch units with one tap, no need to re-measure. Try the distance calculator to measure any route on the map, or the nautical miles calculator for marine and aviation distances.
Get Distance Tool
Download Distance Tool for iOS and start measuring in seconds.
