Convert Kilometers (km) to Miles (mi) instantly — free length converter, no sign-up.
1 km (kilometers) = 0.621371 mi (miles)
mi = km × 0.621371
To convert 25 kilometers to miles, multiply by 0.621371 (25 × 0.621371) — which gives 15.5343 mi.
| Kilometers | Miles |
|---|---|
| 1 km | 0.621371 mi |
| 2 km | 1.2427 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 25 km | 15.5343 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
| 500 km | 310.686 mi |
| 1000 km | 621.371 mi |
Length conversions move between the metric system (millimetres, centimetres, metres, kilometres), which is decimal and scales by powers of ten, and the imperial/US customary system (inches, feet, yards, miles), which does not. The metre is the SI base unit and every conversion here is defined against it: the inch has been exactly 25.4 mm since the 1959 international yard and pound agreement, which is why these factors are exact rather than approximate.