Unit converter
Convert kilometres to miles
Enter a value in kilometres to calculate the equivalent in miles using the authoritative EzyCalculator unit engine.
How to convert km to mi
Kilometres to miles is useful for road distances, running events and travel planning when a US or UK distance is preferred.
Formula: mi = km × 0.621371
Reverse formula: km = mi × 1.609344
Worked example: 1 km = 0.621371 mi.
Useful for: Road, race and travel distances in miles.
Common km to mi conversions
| kilometres | miles |
|---|---|
| 1 km | 0.621371 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.213712 mi |
| 25 km | 15.53428 mi |
| 50 km | 31.06856 mi |
| 100 km | 62.137119 mi |
| 500 km | 310.685596 mi |
About the units
A kilometre is a metric unit represented by km. A mile is an imperial unit represented by mi. Calculations use the same authoritative registry as the full length converter, retaining full precision until display.