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Miles to Kilometers Conversion Information
Converting miles (mi) to kilometers (km) is essential when traveling between countries that use different measurement systems or when reading maps and distance signs. Miles are primarily used in the United States and the United Kingdom, while kilometers are used in most other countries worldwide as part of the metric system.
How to Convert Miles to Kilometers
To convert miles to kilometers, use the following formula:
km = mi × 1.60934
For quick mental calculations, you can use this approximation:
km ≈ mi × 1.6
Miles to Kilometers Conversion Table
| Miles (mi) | Kilometers (km) | Common Reference |
|---|---|---|
| 1 mi | 1.609 km | Average walking distance in 15-20 minutes |
| 3.107 mi | 5 km | Common running distance |
| 6.214 mi | 10 km | Standard road race distance |
| 13.1 mi | 21.097 km | Half-marathon distance |
| 26.219 mi | 42.195 km | Marathon distance |
| 31.069 mi | 50 km | Ultra-marathon distance |
| 62.137 mi | 100 km | Typical highway distance between cities |
| 621.371 mi | 1000 km | Distance across a small country |
Common Mile to Kilometer Conversions
- 1 mi = 1.60934 km
- 5 mi = 8.04672 km
- 10 mi = 16.0934 km
- 100 mi = 160.934 km
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.
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.
When traveling internationally, understanding the conversion between miles and kilometers can help you better estimate distances, travel times, and follow speed limits correctly.