length conversion
Convert Miles to Kilometers
One mile equals 1.6093 kilometers. Enter any value below for an exact conversion.
How to convert Miles to Kilometers
- Type the number of miles into the first field.
- The equivalent in kilometers appears immediately.
- Swap the units to convert in the opposite direction.
Miles to Kilometers formula
km = mi × 1.6093
Worked example: to convert 12 mi, multiply 12 × 1.6093 = 19.3121 km.
This conversion factor is exact by international definition rather than measured, so the only rounding is whatever you apply to the final answer.
Miles to Kilometers conversion table
| 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 | 160.93 km |
What is a mile?
Exactly 1,609.344 meters, derived from the Roman mille passus of a thousand paces. Used for road distance in the US and the UK.
What is a kilometer?
One thousand meters. Road distances are in kilometers everywhere except the United States, the United Kingdom and a handful of others.
Frequently asked questions
How many kilometers are in a mile?
One mile is 1.6093 kilometers.
How do I convert miles to kilometers in my head?
Add 60%. 60 mi → 60 + 36 = 96 km, against an exact 96.56.
Is the conversion exact?
Yes. Both units are defined in terms of each other by international agreement, so the factor 1.6093 is exact rather than approximate.
How many miles is 100 km?
100 km is 62.1371 mi.
Which countries use kilometers?
Almost every country in the world, including Canada, Australia and all of continental Europe.
Is my data uploaded to convert it?
No. The arithmetic runs in your browser. Nothing is sent anywhere.