Convert Miles (mi) to Kilometers (km) instantly — free length converter, no sign-up.
1 mi (miles) = 1.6093 km (kilometers)
km = mi × 1.6093
To convert 25 miles to kilometers, multiply by 1.6093 (25 × 1.6093) — which gives 40.2336 km.
| Miles | Kilometers |
|---|---|
| 1 mi | 1.6093 km |
| 2 mi | 3.2187 km |
| 5 mi | 8.0467 km |
| 10 mi | 16.0934 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.934 km |
| 500 mi | 804.672 km |
| 1000 mi | 1609.34 km |
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.