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A hectare (abbreviated as ha) is an area measurement in the metric system often used in land and property measurements. It is internationally recognized and is equal to 10,000 square meters. That means a square that is 100 meters by 100 meters has an area of one hectare.
A square kilometer (km²) is an area measurement used in the metric system. As the name suggests, it's a square that measures one kilometer on each side, and thus it is equal to 1,000,000 square meters. This is a much larger unit of measurement than the hectare and is often used to measure large land or water areas, such as the surface area of cities, countries, or lakes.
A square kilometer is much larger than a hectare. Specifically, one square kilometer is equal to 100 hectares. This means that if you have an area that is 1 square kilometer in size, you could divide that area into 100 equal parts, and each of those parts would have an area of 1 hectare.
The conversion factor between hectares and square kilometers is thus 100. To convert from square kilometers to hectares, multiply the number of square kilometers by 100.
1 square kilometer = 100 hectares
To convert from hectares to square kilometers, divide the number of hectares by 100.
1 hectare = 0.01 square kilometers