To convert square decimeters to square kilometers, multiply the value by 1 × 10⁻⁸. To go the other way, multiply square kilometers by 100,000,000 to get square decimeters.
| Square Decimeters (dm²) | Square Kilometers (km²) |
|---|---|
| 1 dm² | 1 × 10⁻⁸ km² |
| 2 dm² | 2 × 10⁻⁸ km² |
| 5 dm² | 5 × 10⁻⁸ km² |
| 10 dm² | 1 × 10⁻⁷ km² |
| 20 dm² | 2 × 10⁻⁷ km² |
| 50 dm² | 5 × 10⁻⁷ km² |
| 100 dm² | 1 × 10⁻⁶ km² |
| 500 dm² | 5 × 10⁻⁶ km² |
| 1,000 dm² | 1 × 10⁻⁵ km² |
25 dm² × 1 × 10⁻⁸ = 2.5 × 10⁻⁷ km²
Try this example →250 dm² × 1 × 10⁻⁸ = 2.5 × 10⁻⁶ km²
Try this example →Square decimeter (dm²). A square decimeter is 100 square centimeters (0.01 m²).
Square kilometer (km²). A square kilometer is one million square meters (100 hectares), used for countries, cities and lakes.
There are 1 × 10⁻⁸ square kilometers in one square decimeter.
Multiply the number of square decimeters by 1 × 10⁻⁸. For example, 10 square decimeters equal 1 × 10⁻⁷ square kilometers.
One square kilometer equals 100,000,000 square decimeters.