Convert Square Kilometers to Square Miles
Use our free online converter to easily convert from Square Kilometers to Square Miles. Get accurate conversions instantly.
Converting Square Kilometers to Square Miles
Converting square kilometers to square miles is important in geography, cartography, and regional planning, particularly when communicating between metric and imperial measurement systems.
Mathematical Relationship
The mathematical relation between square kilometers and square miles is: 1 square kilometer = 0.386102 square miles. To convert an area in square kilometers to square miles, multiply the square kilometer value by 0.386102.
Common Conversion Values
| Square Kilometers | Square Miles |
|---|---|
| 1 | 0.386102 |
| 5 | 1.93051 |
| 10 | 3.86102 |
| 100 | 38.6102 |
| 1000 | 386.102 |
Unit Definitions
Square Kilometers
The square kilometer (symbol: km²) is a metric unit of area equal to 1,000,000 square meters. It is commonly used for measuring large land areas, geographic regions, and administrative territories.
Square Miles
The square mile (symbol: mi²) is an imperial and US customary unit of area equal to the area of a square with sides of one mile. It equals 640 acres and is commonly used for measuring large land areas in the United States and United Kingdom.
Historical Context
The kilometer was introduced as part of the metric system during the French Revolution, while the mile has ancient Roman origins. The relationship between their square units became important for international mapping and geographic information systems.