Convert Kilometers to Miles
Use our free online converter to easily convert from Kilometers to Miles. Get accurate conversions instantly.
Converting Kilometers to Miles
Converting kilometers to miles is crucial for international travel, navigation, and understanding distances between countries that use different measurement systems.
Mathematical Relationship
The mathematical relation between kilometers and miles is: 1 kilometer = 0.621371 miles. To convert a distance in kilometers to miles, multiply the kilometer value by 0.621371.
Common Conversion Values
| Kilometers | Miles |
|---|---|
| 1 | 0.621371 |
| 5 | 3.10686 |
| 10 | 6.21371 |
| 50 | 31.0686 |
| 100 | 62.1371 |
Unit Definitions
Kilometers
The kilometer (symbol: km) is a unit of length in the metric system, equal to 1,000 meters. It is commonly used for measuring distances between geographical places on land.
Miles
The mile (symbol: mi) is a unit of length in the imperial and US customary systems, equal to 5,280 feet or 1,609.344 meters. It is commonly used for measuring longer distances, particularly in the United States and the United Kingdom.
Historical Context
The kilometer was introduced as part of the metric system during the French Revolution. The mile has ancient Roman origins (from 'mille passus' meaning 'thousand paces') and has varied in definition throughout history before being standardized.