Kilometers to Miles Converter
Kilometers measure road distances across most of the planet, while miles rule the roads of the United States and the United Kingdom. Converting kilometers to miles is essential for international road trips, understanding foreign speed limits, and following marathon coverage — the classic 42.195 km marathon is 26.219 miles. One kilometer equals 0.621371 miles, so multiply kilometers by 0.621371. Use the converter above for instant results in both directions, check the reference table for common distances, or browse the FAQs for real-world examples like 100 km/h speed limits.
KM to Miles Calculator
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Quick Reference Table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 | 0.6214 |
| 2 | 1.2427 |
| 3 | 1.8641 |
| 4 | 2.4855 |
| 5 | 3.1069 |
| 6 | 3.7282 |
| 7 | 4.3496 |
| 8 | 4.971 |
| 9 | 5.5923 |
| 10 | 6.2137 |
| 25 | 15.5343 |
| 50 | 31.0686 |
| 100 | 62.1371 |
| 500 | 310.6856 |
Frequently Asked Questions
How many miles are in 100 kilometers?
100 kilometers = 62.1371 miles. Just apply the conversion to any value with the converter above.
What is the formula to convert kilometers to miles?
To convert kilometers to miles, multiply the number of kilometers by 0.621371. In short: 1 km = 0.621371 mi.
How long is a marathon in miles?
A marathon is 42.195 kilometers, which converts to 26.2188 miles — the famous 26.2 miles. The distance comes from the 1908 London Olympics route. Enter 42.195 in the converter above to verify it yourself.
How do I convert miles back to kilometers?
Simply reverse the math: to go from miles to kilometers, divide the miles by 0.621371. Or use our dedicated Miles to Kilometers converter.