Miles to Kilometers Converter
Convert miles to kilometers instantly. 1 mi equals exactly 1.609344 km. Use the converter above, or the formula, worked example and table below for common distances.
Live formula: 1 mi → km
See all Length & Distance Converter conversions →
How to Use the Miles to Kilometers Converter
- 1. Enter a value in the left input field — the converter is already set to Mile (mi) to Kilometer (km).
- 2. Read the instant converted value and review the live formula line.
- 3. Use the swap button to reverse the direction, or copy either amount.
- 4. Check the table below for common miles to km conversions.
Miles to Kilometers Converter Formula
kilometers = miles × 1.609344
Worked example: 26.2 mi × 1.609344 = 42.1648 km — 26.2 miles is a marathon distance.
Mile (mi) to Kilometer (km) Conversion Table
| From Unit | To Unit | Input | Result |
|---|---|---|---|
| Mile (mi) | Kilometer (km) | 0.5 | 0.804672 |
| Mile (mi) | Kilometer (km) | 1 | 1.609344 |
| Mile (mi) | Kilometer (km) | 2 | 3.218688 |
| Mile (mi) | Kilometer (km) | 5 | 8.04672 |
| Mile (mi) | Kilometer (km) | 10 | 16.09344 |
| Mile (mi) | Kilometer (km) | 26.2 | 42.164813 |
| Mile (mi) | Kilometer (km) | 50 | 80.4672 |
| Mile (mi) | Kilometer (km) | 100 | 160.9344 |
Did You Know?
- The international mile is exactly 1,609.344 meters.
- A marathon is 42.195 km — 26 miles 385 yards.
Frequently Asked Questions
How many km is 1 mile?
1 mile equals exactly 1.609344 kilometers.
How do I convert miles to km quickly?
Multiply the miles by 1.6 for a quick estimate. For the exact value, multiply by 1.609344 — for example, 10 mi × 1.6 ≈ 16 km, while the exact answer is 16.09 km.
How long is a marathon in km?
A marathon is 42.195 km — 26 miles 385 yards, usually rounded to 26.2 miles.
Do the UK and US use the same mile?
Yes. Both use the international mile of exactly 1,609.344 meters.