Convert between square feet, square meters, acres, hectares, square miles and more.
One acre equals exactly 43,560 square feet. This is a standard measurement used in real estate in the United States. One acre is also approximately 4,047 square meters or 0.405 hectares.
To convert square meters to square feet, multiply by 10.7639. For example, 100 square meters = 100 × 10.7639 = 1,076.39 square feet.
There are exactly 100 hectares in one square kilometer. One hectare equals 10,000 square meters, and one square kilometer equals 1,000,000 square meters.
One hectare equals approximately 2.471 acres. A hectare is 10,000 square meters, while an acre is approximately 4,047 square meters. The hectare is a metric unit, while the acre is primarily used in the US and UK.
One square mile equals exactly 2,589,988.11 square meters (approximately 2.59 square kilometers). There are 640 acres in one square mile.