Square Kilometers to Square Miles Converter
Instantly convert Square Kilometers (km²) to Square Miles (sq mi). Used in geography, mapping, and news reporting when converting country or region sizes between metric and imperial.
Quick Reference
How to Convert Square Kilometers to Square Miles
To convert Square Kilometers to Square Miles, use this formula:
sq mi = km² × 0.386102
Example: Converting 10 km² to Square Miles gives you 3.861 sq mi. Just enter your own value in the converter above for an instant result.
Square Kilometers to Square Miles Conversion Table
Common Square Kilometers to Square Miles values at a glance — use this as a quick lookup reference:
| Square Kilometers (km²) | Square Miles (sq mi) |
|---|---|
| 1 km² | 0.386102 sq mi |
| 5 km² | 1.9305 sq mi |
| 10 km² | 3.861 sq mi |
| 50 km² | 19.3051 sq mi |
| 100 km² | 38.6102 sq mi |
| 500 km² | 193.05 sq mi |
| 1000 km² | 386.1 sq mi |
| 5000 km² | 1930.51 sq mi |
| 10000 km² | 3861.02 sq mi |
| 100000 km² | 38610.2 sq mi |
| 1.0000e+6 km² | 386102 sq mi |
When to Use Square Kilometers to Square Miles Conversion
Used in geography, mapping, and news reporting when converting country or region sizes between metric and imperial. Here are the most common scenarios where you will need this conversion:
About Square Kilometers and Square Miles
One square kilometer equals approximately 0.386 square miles. This conversion is essential in geography and journalism. Country sizes are reported in km² in most of the world but in sq miles for American audiences — the US is 9.8 million km² (3.8 million sq miles). City areas, national parks, and disaster zones reported in km² by international sources need sq mi conversion for US media. Navigation and military operations comparing metric and imperial map scales use this conversion. Real estate developments and large urban planning projects spanning several km² need sq mi equivalents.