How many square meters are in 1 square kilometer?

1 square kilometer equals 1000000 m².

How do I convert square meters back to square kilometers?

Use the reverse converter: 1 square meter equals 0.000001 km².

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert square kilometers to square meters, multiply the value by 1000000.

m² = km² × 1000000

40 km² × 1000000 = 40000000 m²

Square Kilometer (km²): Used for the area of countries, cities and lakes. Equal to one million square metres.
Square Meter (m²): The SI unit of area, used for property and floor space in most countries.

How do I convert square kilometers to square meters?: To convert square kilometers to square meters, multiply the value by 1000000.
How many square meters are in 1 square kilometer?: 1 square kilometer equals 1000000 m².
How many square meters are in 10 square kilometers?: 10 km² equals 10000000 m².
How do I convert square meters back to square kilometers?: Use the reverse converter: 1 square meter equals 0.000001 km².
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.