Kilometers to Miles Converter (km to mi)
Type a value in kilometers to see it in miles instantly.
1 kilometer (km) = 0.621371192 miles (mi)
1 mile (mi) = 1.609344 kilometers (km)
How to convert kilometers to miles
Multiply the number of kilometers by 0.621371192, or divide by 1.609344.
mi = km × 0.621371192 (or km ÷ 1.609344)
Example: 10 km × 0.621371192 = 6.21371 mi
Two race distances are worth remembering: a 5K is 3.11 miles, a half marathon (21.0975 km) is 13.1 miles and a full marathon (42.195 km) is 26.2 miles.
For quick mental maths, multiply kilometers by 0.6 — or use the Fibonacci trick: consecutive Fibonacci numbers (5, 8, 13, 21) are approximately miles and kilometers, so 8 km ≈ 5 miles and 13 km ≈ 8 miles.
km to mi conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.621371 mi |
| 2 km | 1.24274 mi |
| 3 km | 1.86411 mi |
| 5 km | 3.10686 mi |
| 10 km | 6.21371 mi |
| 15 km | 9.32057 mi |
| 20 km | 12.4274 mi |
| 21.0975 km | 13.1094 mi |
| 25 km | 15.5343 mi |
| 30 km | 18.6411 mi |
| 40 km | 24.8548 mi |
| 42.195 km | 26.2188 mi |
| 50 km | 31.0686 mi |
| 60 km | 37.2823 mi |
| 80 km | 49.7097 mi |
| 100 km | 62.1371 mi |
| 120 km | 74.5645 mi |
| 150 km | 93.2057 mi |
| 200 km | 124.274 mi |
| 500 km | 310.686 mi |
| 1,000 km | 621.371 mi |
About the units
Kilometer (km)
A kilometer (kilometre) is 1,000 meters. It is the standard unit for road distances and running races in almost every country outside the United States and the United Kingdom.
Mile (mi)
The international mile is defined as exactly 1,609.344 meters, or 5,280 feet. It is used for road distances and speed limits in the United States and the United Kingdom.
Frequently asked questions
How many miles are in 1 kilometer?
1 kilometer equals 0.621371192 miles.
How do I convert kilometers to miles?
Multiply the number of kilometers by 0.621371192, or divide by 1.609344. For example, 10 km × 0.621371192 = 6.21371 mi.
How many kilometers are in 1 mile?
1 mile equals 1.609344 kilometers.
How many miles is a 5K run?
A 5K is 5 kilometers, which is 3.107 miles (usually rounded to 3.1 miles).
Is a kilometer longer than a mile?
No. A mile is about 1.6 times longer than a kilometer: 1 mile = 1.609344 km, while 1 km = 0.621371 miles.
Related conversions
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Background reading: Metric vs. Imperial.