Area Converter
Surface - square millimeters to square miles.
Enter a value above to convert between m² and ft².
How to convert area units
Area is based on the square meter. Because area scales with the square of length, each factor is the square of the matching length factor - one foot is 0.3048 m, so one square foot is 0.3048² = 0.09290304 m². For land, the common units are the acre and the hectare.
Worked example
To convert 100 square feet to square meters: 100 × 0.09290304 = 9.29 m². Two hectares is 2 × 2.471 = 4.94 acres, and one acre is 4046.86 m².
How big is an acre in square meters?
One acre equals 4046.856422 square meters. One hectare equals 10,000 square meters (about 2.471 acres), one square foot equals 0.09290304 square meters, one square mile equals 2.58998811 square kilometers, and one square kilometer equals 1,000,000 square meters.
When you'll use an area converter
Area conversion comes up in real estate and land (acres, hectares, square meters and square feet), flooring, paint and carpet estimates, farming, and mapping. The table above lists your value in all 9 supported units at once.