How to convert miles to kilometers
Miles and Kilometers both measure length, so converting is a single multiplication. One mi equals 1.609344 km, so you multiply your miles value by 1.609344.
Formula: kilometers = miles × 1.609344. For example, 10 mi = 16.09344 km.
Miles to Kilometers conversion table
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 | 1.609344 |
| 2 | 3.218688 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.9344 |
| 1,000 | 1,609.344 |
Miles and Kilometers explained
Miles (mi): 5,280 feet (1.609 km), the imperial unit for road distances in the US and UK.
Kilometers (km): One thousand metres, the metric unit for road distances in most of the world.
When you'd convert miles to kilometers
You'll convert miles to kilometers whenever a measurement is given in one unit but you need it in the other — comparing miles and kilometers figures across regions, following a recipe or spec, or double-checking a number. Because 1 mi is exactly 1.609344 km, the result is precise every time.
Frequently asked questions
How many kilometers are in a mile?
One mi equals 1.609344 km. Multiply your miles figure by 1.609344 to get kilometers.
What is the formula to convert miles to kilometers?
kilometers = miles × 1.609344. The factor 1.609344 is exact.
What is 2 miles in kilometers?
2 mi = 3.218688 km. You can enter any value in the converter above to get an instant result.
Is this Miles to Kilometers converter accurate?
Yes. It uses the standard conversion factor (1 mi = 1.609344 km) defined by BIPM — SI Brochure (definition of the metre), so results are exact to several decimal places.