Converting miles (mi) to kilometers (km) is essential when you read US or UK road signs, running logs, or GPS distances in miles and need metric values for travel abroad or scientific work. The international mile is exactly 1,609.344 meters, so km = miles × 1.609344.
km = mi × 1.609344
Multiply the distance in miles by 1.609344 to get kilometers. This factor is the exact definition of the international mile expressed in meters.
| mile | kilometer |
|---|---|
| 1 | 1.60934 |
| 2 | 3.21869 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.9344 |
A highway sign shows 62 miles to the next city. How many kilometers is that?
62 miles equals approximately 99.8 km.
One Mile (mi) equals 1.609344 Kilometers (km)
Units of length are standardized measurements used to define physical dimensions, tolerances, and distances in engineering drawings, construction plans, and product specifications across metric and imperial systems.
One Kilometer (km) equals 0.621371 Mile (mi)
Units of length are standardized measurements used to define physical dimensions, tolerances, and distances in engineering drawings, construction plans, and product specifications across metric and imperial systems.
How many kilometers are in a mile?
One mile equals exactly 1.609344 kilometers. Multiply miles by 1.609344 to convert.
How do I quickly estimate miles to km?
Multiply by 1.6 for a close estimate. For example, 10 mi × 1.6 ≈ 16 km (exact is 16.09 km).
How do I convert kilometers back to miles?
Divide kilometers by 1.609344. For example, 100 km ÷ 1.609344 ≈ 62.14 mi.
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