Kilometers to Miles
Result:
Enter a length to convert.
Convert kilometers to miles. From is set to kilometers and To is set to miles. The result updates as you type. One mile is exactly 1.609344 kilometers. Other units are on the length converter. The other direction is miles to kilometers.
Kilometers to miles formula
NIST Handbook 44 (2024), Appendix C lists the international mile as 1.609344 kilometers exactly, which is 1609.344 meters.
Formula: miles = kilometers ÷ 1.609344.
The converter multiplies by 1000 meters per kilometer and divides by 1609.344 meters per mile, then rounds the displayed result to five decimal places.
Example: 5 km ÷ 1.609344 = 3.10686 mi. One kilometer shows 0.62137 mi.
Kilometers to miles reference table
Each value below is the converter result at five decimal places. Enter the same kilometers in the form above and the result should match. The 1.609344 km row is one mile exactly.
| Kilometers | Miles |
|---|---|
| 1 | 0.62137 |
| 1.609344 | 1.00000 |
| 2 | 1.24274 |
| 5 | 3.10686 |
| 8 | 4.97097 |
| 10 | 6.21371 |
| 16.09344 | 10.00000 |
| 20 | 12.42742 |
| 42.195 | 26.21876 |
| 50 | 31.06856 |
| 100 | 62.13712 |
Kilometers to miles examples
Road races: A 5 km run is 3.10686 mi, and a 10 km run is 6.21371 mi.
Marathon: The standard marathon distance of 42.195 km is 26.21876 mi.
One mile: 1.609344 km shows 1.00000 mi. Ten miles are 16.09344 km and also show 10.00000 mi from that row.
Quick mental math (approximation)
To estimate miles, multiply the kilometers by 0.6. Example: 10 km × 0.6 is about 6 mi. The exact result is 6.21371 mi.
This shortcut is an approximation. It runs about 3.4 percent low. Use the converter or the exact formula for race results, maps, or records.
Kilometers to miles FAQ
How many miles are in a kilometer?
One kilometer is 1000 ÷ 1.609344 miles. The converter shows 0.62137 mi.
How do I convert miles to kilometers?
Multiply miles by 1.609344. One mile is exactly 1.609344 kilometers. The converter rounds 1 mile to 1.60934 km.
Is this the statute mile?
Yes. This page uses the international mile of 1609.344 meters exactly, the same mile as the length converter. It does not use the older U.S. survey mile.