Area scales with the square of length, so a factor of 2 in length is 4 in area. That's why 1 m² = 3.2808² ≈ 10.764 ft². Acres and hectares are the usual units for land; square metres and feet for rooms and buildings.
Converting area units
Areas are defined relative to the square meter, so one value instantly becomes square feet, yards, inches, acres, hectares and more. Useful references: 1 acre = 43,560 sq ft, 1 hectare = 10,000 sq m, and 1 sq m ≈ 10.76 sq ft.