Length conversion
Convert Kilometers to Miles
1 kilometer equals 0.6214 miles. To convert kilometers to miles, multiply the kilometers by 0.6214 (or divide by 1.609344).
Kilometers to miles is what you need for foreign road signs and odometers, race distances, and car specs quoted in km. Enter any kilometer value and the miles appear instantly, with the exact factor shown so you can reuse it for any distance.
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Computed at full precision in your browser; the result is rounded for display.
How to convert kilometers to miles
Formula
miles = kilometers × 0.6214 kilometers = miles × 1.609344One mile is exactly 1.609344 kilometers, so one kilometer is 1 ÷ 1.609344 = 0.621371… miles. Don't confuse the statute mile with the nautical mile (1.852 km).
| Kilometers | Miles |
|---|---|
| 1 km | 0.6214 mi |
| 5 km | 3.107 mi 5K race |
| 10 km | 6.214 mi 10K race |
| 20 km | 12.43 mi |
| 21.1 km | 13.11 mi half marathon |
| 42.2 km | 26.22 mi marathon |
| 50 km | 31.07 mi |
| 80 km | 49.71 mi |
| 100 km | 62.14 mi |
| 160 km | 99.42 mi |
Worked example
A foreign road sign says the next town is 80 km away and you think in miles. Multiply 80 × 0.6214 to get about 49.7 miles. For runners, a 10 km race is 6.21 miles and a 42.2 km marathon is 26.2 miles — the familiar imperial distances.
Shortcut. Quick estimate: multiply kilometers by 0.6, so 100 km ≈ 60 miles (true value 62). For running, divide km by 1.6.
Good to know
Kilometers-to-miles is a clean single multiplier. The one ambiguity is which mile: this uses the statute (land) mile of 1.609 km, not the nautical mile (1.852 km) of aviation and shipping. To go the other way, multiply miles by 1.609344.
Frequently asked questions
How many miles is 1 km?
One kilometer is 0.6214 miles. Multiply any kilometer figure by 0.6214 to convert to miles.
What is 5 km in miles?
5 km equals about 3.11 miles, which is why a 5K race is just over three miles. 10 km is 6.21 miles.
How do I convert km to miles in my head?
Multiply by 0.6, or take 60% of the number. 100 km is roughly 60 miles (62 exactly).
What is 100 km in miles?
100 km is about 62.1 miles. A 100 km/h speed limit is roughly 62 mph.
Is a km shorter than a mile?
Yes. A kilometer is about 0.62 of a mile, so a mile is the longer unit — 1 mile equals 1.609 km.