Convert Miles to Kilometers
Miles (mi) to Kilometers (km) — the formula, a worked example and a live converter, all in your browser.
Miles to Kilometers formula
To convert a measurement, multiply it by the fixed factor below:
km = mi × 1.609344
Worked example
1 mi = 1 × 1.609344 = 1.609344 km.
Miles to Kilometers conversion table
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 | 1.609344 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.9344 |
Common uses
Handy for planning road trips abroad, logging running or cycling distances, and converting a car's odometer reading into kilometres.
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Frequently asked questions
What is the formula to convert miles to kilometers?
Multiply the number of miles by 1.609344 to get kilometers (km = mi × 1.609344).
How many kilometers are in a mile?
One mile equals 1.609344 kilometers.
Is this converter accurate?
Yes. It uses the exact internationally-defined conversion factors and runs entirely in your browser, so results match standards tables and nothing you type is uploaded.