How to convert square kilometers to square miles
- Take the value in square kilometers.
- Use the formula square miles = square kilometers × 0.3861021585.
- For example, 0.01 km² is 0.00386 mi².
About square kilometers and square miles
A square kilometer is 0.386102 square miles, so multiply km² by 0.386 to get square miles, or divide by 2.59. For a quick estimate multiply by 0.4, which comes out about 3.6% high: 1,000 km² gives 400 sq mi against the exact 386.1.
Country, park and city sizes are listed in km² in most of the world, while US readers picture areas in square miles. A square kilometer is also 100 hectares, which helps with farmland and forest figures.
Examples
- 0.01 km² (one hectare) is 0.00386 mi²
- 1 km² (one square kilometer, or 100 hectares) is 0.386 mi²
- 105.4 km² (the city of Paris) is 40.7 mi²
- 17,098,246 km² (Russia, the largest country) is 6,601,669.69 mi²
Square kilometers to square miles chart
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 0.01 | 0.00386 |
| 0.1 | 0.0386 |
| 0.5 | 0.193 |
| 1 | 0.386 |
| 2 | 0.772 |
| 2.59 | 1 |
| 5 | 1.93 |
| 10 | 3.86 |
| 20 | 7.72 |
| 25 | 9.65 |
| 50 | 19.31 |
| Square kilometers (km²) | Square miles (mi²) |
|---|---|
| 100 | 38.61 |
| 200 | 77.22 |
| 250 | 96.53 |
| 500 | 193.05 |
| 1,000 | 386.1 |
| 2,000 | 772.2 |
| 5,000 | 1,930.51 |
| 10,000 | 3,861.02 |
| 50,000 | 19,305.11 |
| 100,000 | 38,610.22 |
| 1,000,000 | 386,102.16 |