Convert Kilometers to miles
1 kilometer = 0.621371 miles · mi = km ÷ 1.609344
When you need this conversion
This conversion goes from kilometers, the metric unit for road distances and travel, to miles, the standard road distance unit in the US and UK. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
Kilometers to miles conversion table
| Kilometers (km) | Miles (mi) |
|---|---|
| 1 km | 0.621371 mi |
| 2 km | 1.2427 mi |
| 3 km | 1.8641 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 15 km | 9.3206 mi |
| 20 km | 12.4274 mi |
| 25 km | 15.5343 mi |
| 50 km | 31.0686 mi |
| 75 km | 46.6028 mi |
| 100 km | 62.1371 mi |
| 250 km | 155.34 mi |
| 500 km | 310.69 mi |
| 1,000 km | 621.37 mi |
The formula
mi = km ÷ 1.609344Because both units measure length, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Miles to kilometers →Related length conversions
- Kilometers to meters
- Millimeters to micrometers
- Centimeters to inches
- Centimeters to feet
- Meters to kilometers
- Inches to centimeters
- Feet to centimeters
- Feet to yards
- Yards to feet
- Micrometers to millimeters
- Millimeters to miles
- Centimeters to miles
Frequently asked questions
- How many miles are in a kilometer?
- There are 0.621371 miles in 1 kilometer. The formula is mi = km ÷ 1.609344.
- How do you convert kilometers to miles?
- Use the formula mi = km ÷ 1.609344. For example, 10 kilometers equals 6.2137 miles.
- Is the kilometers to miles conversion exact?
- Yes. Kilometers and miles are both units of length, related by an exact defined factor. Displayed results are rounded for readability.
- What is km short for?
- km is the standard symbol for kilometer (also written as kilometres). mi is the symbol for mile.