How to convert kilometers to miles
Kilometers and Miles both measure length, so converting is a single multiplication. One km equals 0.621371 mi, so you multiply your kilometers value by 0.621371.
Formula: miles = kilometers × 0.621371. For example, 10 km = 6.213712 mi.
Kilometers to Miles conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 | 0.621371 |
| 2 | 1.242742 |
| 5 | 3.106856 |
| 10 | 6.213712 |
| 25 | 15.53428 |
| 50 | 31.06856 |
| 100 | 62.137119 |
| 1,000 | 621.371192 |
Kilometers and Miles explained
Kilometers (km): One thousand metres, the metric unit for road distances in most of the world.
Miles (mi): 5,280 feet (1.609 km), the imperial unit for road distances in the US and UK.
When you'd convert kilometers to miles
You'll convert kilometers to miles whenever a measurement is given in one unit but you need it in the other — comparing kilometers and miles figures across regions, following a recipe or spec, or double-checking a number. Because 1 km is exactly 0.621371 mi, the result is precise every time.
Frequently asked questions
How many miles are in a kilometer?
One km equals 0.621371 mi. Multiply your kilometers figure by 0.621371 to get miles.
What is the formula to convert kilometers to miles?
miles = kilometers × 0.621371. The factor 0.621371 is exact.
What is 2 kilometers in miles?
2 km = 1.242742 mi. You can enter any value in the converter above to get an instant result.
Is this Kilometers to Miles converter accurate?
Yes. It uses the standard conversion factor (1 km = 0.621371 mi) defined by BIPM — SI Brochure (definition of the metre), so results are exact to several decimal places.