UnitConSquare Kilometers to Square Miles Converter
Convert square kilometers to square miles for country sizes, national park areas, and geographic comparisons between metric and US reference systems. This is common in journalism and geography when comparing international land areas.
Formula
Multiply square kilometers by 0.386102 to get square miles. To reverse, divide square miles by 0.386102 to get square kilometers.
Quick reference
| Square Kilometer (km²) | Square Mile (mi²) |
|---|---|
| 1 | 0.3861022 |
| 5 | 1.930511 |
| 10 | 3.861022 |
| 50 | 19.30511 |
| 100 | 38.61022 |
| 500 | 193.0511 |
| 1000 | 386.1022 |
| 5000 | 1,930.511 |
| 10000 | 3,861.022 |
| 100000 | 38,610.22 |
About these units
Square Kilometer
The square kilometer (1 km × 1 km = 1,000,000 m²) is the standard unit for large geographic areas in metric countries. Country sizes, forest coverage, and ocean areas are typically reported in km² internationally.
Square Mile
The square mile (1 mile × 1 mile ≈ 2.59 km²) is the standard large-area unit in the US and UK. US states, counties, and national parks are commonly sized in square miles.