Fast answers, clean math
Kilometers to miles converter
Enter kilometers and get miles instantly. This page also shows the formula so you can sanity-check the result.
Unit converter
Convert km to miles
Formula
Kilometers to miles (km \u2192 mi)
The conversion is based on an exact definition: 1 mile equals exactly 1.609344 kilometers.
Formula: miles = kilometers \u00f7 1.609344
If you prefer multiplication, use: miles = kilometers \u00d7 0.621371192.
| Kilometers (km) | Miles (mi) |
|---|---|
| 0.5 | 0.3107 |
| 1 | 0.6214 |
| 5 | 3.1069 |
| 10 | 6.2137 |
| 21.0975 | 13.1094 |
| 42.195 | 26.2188 |
Usage notes
Kilometers to miles in real life
Use this conversion for race distances, road signs, mapping, and travel planning. A 5K race is about 3.11 miles, a 10K is about 6.21 miles, and a marathon is about 26.22 miles. If you are comparing international training plans, convert the headline distance first and then round to a number you can remember.
For best results, enter the original measurement exactly as you have it, then round the converted value for the situation. Keep both the number and the unit together when copying the answer into notes, listings, shipping forms, or project plans.