Length · mi → km
Miles to Kilometres
Enter any value below to convert miles to kilometres instantly.
To
1 mi = 1.609344 km
Conversion formula
How to convert mi to km
km = mi × 1.609344
Multiply the miles value by 1.609344 to get kilometres. The converter keeps extra precision internally and rounds only the displayed answer.
This conversion is useful when reading US or UK road distances and translating them for countries that use the metric system.
Worked example
Convert 10 mi10 mi = 16.09344 km
Calculated with the published formula. No estimated exchange rates or hidden rounding.
Common miles to kilometres values
| Miles (mi) | Kilometres (km) |
|---|---|
| 1 mi | 1.609344 km |
| 5 mi | 8.04672 km |
| 10 mi | 16.09344 km |
| 25 mi | 40.2336 km |
| 50 mi | 80.4672 km |
| 100 mi | 160.9344 km |
Quick answer
How many kilometres are in one mile?
One mile equals 1.609344 km.