How to convert Miles to Kilometers
The conversion is a single multiplication: 1 mi = 1.609344 km. To convert miles to kilometers, multiply by 1.609344. To go back, multiply kilometers by 0.621371 (or divide by 1.609344). These factors are exact by definition.
Examples
- 1 mi = 1.609344 km
- 12 mi = 19.312128 km
Miles to Kilometers conversion table
| Miles (mi) | Kilometers (km) |
|---|---|
| 1 | 1.609344 |
| 2 | 3.218688 |
| 3 | 4.828032 |
| 4 | 6.437376 |
| 5 | 8.04672 |
| 10 | 16.09344 |
| 20 | 32.18688 |
| 25 | 40.2336 |
| 50 | 80.4672 |
| 100 | 160.9344 |
Frequently asked questions
- How do I convert Kilometers back to Miles?
- Use the Kilometers to Miles converter, or just swap the units on the full unit converter — it shows every unit in the category at once.
- Are these conversion factors exact?
- Yes. The English units have been defined in metric terms since 1959, so the factors used here are exact by definition, not rounded approximations. Displayed results are rounded only for readability.
- Can I convert other units too?
- The unit converter also handles length, weight, volume, temperature, area, speed, pressure, energy, power, torque, and fuel economy — each with every unit shown side by side.