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Convert kilometers to miles
Instant, accurate km → mi conversion with a live converter, table and formula.
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1 kilometer = 0.621371 miles
1 mile = 1.60934 kilometers
kilometers to miles table
| kilometers (km) | miles (mi) |
|---|---|
| 0.5 | 0.310686 |
| 1 | 0.621371 |
| 2 | 1.24274 |
| 5 | 3.10686 |
| 10 | 6.21371 |
| 20 | 12.4274 |
| 50 | 31.0686 |
| 100 | 62.1371 |
| 500 | 310.686 |
| 1000 | 621.371 |
Formula
miles = kilometers × 0.621371.
Example
10 kilometers = 6.21371 miles.
What is a kilometer?
A kilometer (km) is 1,000 meters, the standard metric unit for road distances.
What is a mile?
A mile (mi) is 5,280 feet (1.609 km), the imperial unit for long distances.
Real-world reference points
A meter is about one long stride; a foot is a large shoe; an inch is the top joint of a thumb.
| Reference | kilometers | miles |
|---|---|---|
| Credit card width | 0.000086 km | 0.000053 mi |
| Average adult height | 0.0017 km | 0.00106 mi |
| Door height | 0.002 km | 0.00124 mi |
| Football (soccer) pitch length | 0.105 km | 0.0652 mi |
| Marathon distance | 42.2 km | 26.22 mi |
Mistakes to avoid with length conversions
- Mixing unit systems mid-calculation — convert everything first, then do the math.
- Treating yards and meters as equal: a yard is ~8.6% shorter, which compounds over long distances.
- Rounding centimeters to inches too early when cutting materials — keep one extra decimal until the final cut.
Frequently asked questions
How many miles in a kilometers?+
1 kilometer = 0.621371 miles.
How do I convert kilometers to miles?+
Enter the value in the kilometers box above and the miles value appears instantly. You can also type in the miles box to convert the other way.
Is this km to mi converter free?+
Yes — it is 100% free, needs no sign-up, and runs entirely in your browser.