Convert Square Kilometres to Square Meters (km2 to m2)
1 square kilometre (km²) = 1000000 square meters (m²). 1 m² = 0.000001 km². Example: 15 km² = 15 × 1000000 = 15000000 m².
Also searched as square kilometres to m2, square kilometres in m2, square kilometres into square meters, km2 to m2, km2 in square meters, km2 into square meter, square kilometre to square meter, km2 to square meters converter, square kilometers to square meters and how many square meters in a square kilometre.
1 km² = 1000000 m²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk square kilometre to square meter converter to paste a column from Excel.
How to Convert Square Kilometre to Square Meter
- 1 km² = 1000000 m²
- 1 m² = 0.000001 km²
- Example: convert 15 km² to m²: 15 km² = 15 × 1000000 m² = 15000000 m²
Formula
m² = km² × 1000000
Derivation from SI units:
- 1 km² = (1000 m)² = 10⁶ m² = 100 ha
- 1 m² = 1 m × 1 m
Both units are defined exactly, so the factor is exact. Square Kilometre definition: square kilometre; Square Meter definition: square meter.
Worked examples
- A reading of 2 km² converts to 2000000 m².
2 km² × 1000000 = 2000000 m² - A value of 50 km² is 50000000 m².
50 km² × 1000000 = 50000000 m²
Square Kilometre to Square Meter conversion table
| Square Kilometres (km²) | Square Meters (m²) |
|---|---|
| 0.01 km² | 10000 m² |
| 0.1 km² | 100000 m² |
| 0.5 km² | 500000 m² |
| 1 km² | 1000000 m² |
| 2 km² | 2000000 m² |
| 5 km² | 5000000 m² |
| 10 km² | 10000000 m² |
| 25 km² | 25000000 m² |
| 50 km² | 50000000 m² |
| 100 km² | 100000000 m² |
| 1000 km² | 1000000000 m² |
| 10000 km² | 10000000000 m² |
Where it's used
Square Kilometres are used for city, lake and country areas, while square meters appear in floor and room areas. Both measure area, so the conversion is a fixed factor.
Square Kilometre to other area units
| Conversion | 1 km² equals |
|---|---|
| square kilometre to square meter | 1000000 m² |
| square kilometre to square centimeter | 10000000000 cm² |
| square kilometre to square foot | 10763910.42 ft² |
| square kilometre to square inch | 1550003100 in² |
| square kilometre to hectare | 100 ha |
| square kilometre to acre | 247.1053815 ac |
| square kilometre to square millimeter | 1000000000000 mm² |
| square kilometre to square yard | 1195990.046 yd² |
Show 1 more units
| square kilometre to square mile | 0.3861021585 mi² |
|---|
Frequently asked questions
How many square meters are in 1 square kilometre?
1 km² = 1000000 m².
How do I convert square kilometres to square meters?
Multiply the value in km² by 1000000. For example, 15 km² × 1000000 = 15000000 m².
Is the km² to m² conversion exact?
Yes. Both units are defined exactly, and 1 km² is exactly 1000000 m².
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2, coherent derived units.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Square Kilometres to Square Meters (km2 to m2). Retrieved October 25, 2026, from https://scientificconverters.com/area/square-kilometers-to-square-meters/
IEEE
Scientific Converters, "Convert Square Kilometres to Square Meters (km2 to m2)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/area/square-kilometers-to-square-meters/