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Kilometers to Miles Conversion Information
Converting kilometers (km) to miles (mi) is essential when traveling between countries that use different measurement systems or when reading maps and distance signs. Kilometers are used in most countries worldwide as part of the metric system, while miles are primarily used in the United States and the United Kingdom.
How to Convert Kilometers to Miles
To convert kilometers to miles, use the following formula:
mi = km / 1.60934
For quick mental calculations, you can use this approximation:
mi ≈ km × 0.62
Kilometers to Miles Conversion Table
| Kilometers (km) | Miles (mi) | Common Reference |
|---|---|---|
| 1 km | 0.621 mi | Typical walking distance in 10 minutes |
| 5 km | 3.107 mi | Common running distance |
| 10 km | 6.214 mi | Standard road race distance |
| 26.22 km | 16.29 mi | Half-marathon distance |
| 42.195 km | 26.219 mi | Marathon distance |
| 50 km | 31.069 mi | Ultra-marathon distance |
| 100 km | 62.137 mi | Typical highway distance between cities |
| 1000 km | 621.371 mi | Distance across a small country |
Common Kilometer to Mile Conversions
- 1 km = 0.621371 mi
- 5 km = 3.10686 mi
- 10 km = 6.21371 mi
- 100 km = 62.1371 mi
About Kilometers
The kilometer (km) is a unit of length in the metric system, equal to 1,000 meters. It's the standard unit for measuring long distances in most of the world. Road signs, maps, and vehicle speedometers in most countries (except the US, UK, and a few others) display distances in kilometers.
About Miles
The mile (mi) is a unit of length in the imperial and US customary systems. It equals 5,280 feet or 1,760 yards. The mile is primarily used in the United States and the United Kingdom for road distances, though the UK has been transitioning to kilometers in many contexts.
When driving in countries that use different distance systems, being able to quickly convert between kilometers and miles can be helpful for estimating travel times and distances.