To convert square micrometers to square kilometers, multiply the value by 1 × 10⁻¹⁸. To go the other way, multiply square kilometers by 1 × 10¹⁸ to get square micrometers.
| Square Micrometers (µm²) | Square Kilometers (km²) |
|---|---|
| 1 µm² | 1 × 10⁻¹⁸ km² |
| 2 µm² | 2 × 10⁻¹⁸ km² |
| 5 µm² | 5 × 10⁻¹⁸ km² |
| 10 µm² | 1 × 10⁻¹⁷ km² |
| 20 µm² | 2 × 10⁻¹⁷ km² |
| 50 µm² | 5 × 10⁻¹⁷ km² |
| 100 µm² | 1 × 10⁻¹⁶ km² |
| 500 µm² | 5 × 10⁻¹⁶ km² |
| 1,000 µm² | 1 × 10⁻¹⁵ km² |
25 µm² × 1 × 10⁻¹⁸ = 2.5 × 10⁻¹⁷ km²
Try this example →250 µm² × 1 × 10⁻¹⁸ = 2.5 × 10⁻¹⁶ km²
Try this example →Square micrometer (µm²). A square micrometer is 10⁻¹² m², used for cells and microscopic structures.
Square kilometer (km²). A square kilometer is one million square meters (100 hectares), used for countries, cities and lakes.
There are 1 × 10⁻¹⁸ square kilometers in one square micrometer.
Multiply the number of square micrometers by 1 × 10⁻¹⁸. For example, 10 square micrometers equal 1 × 10⁻¹⁷ square kilometers.
One square kilometer equals 1 × 10¹⁸ square micrometers.