Square feet, square meters, acres and hectares
Area factors are the square of the length factors: 1 ft = 0.3048 m, so 1 ft² = 0.3048² = 0.09290304 m², exactly. Forgetting to square is the most common mistake in area conversions.
- Square feet (sq ft): US and Canadian real estate, flooring, drywall and paint coverage.
- Square meters (m²): floor area almost everywhere else.
- Acre: US land, 43,560 sq ft = 4,046.856 m², about 91% of an American football field without the end zones.
- Hectare: 100 m × 100 m = 10,000 m² = 2.47105 acres. Farmland outside the US.
- Square mile: 640 acres = 2.58999 km².
1 ft² = 0.09290304 m² (exact) 1 m² = 10.7639 ft²
1 acre = 43,560 ft² = 4,046.8564 m²
1 ha = 10,000 m² = 2.47105 acres 1 acre = 0.404686 ha
Square feet to square meters table
| ft² | m² |
|---|---|
| 100 ft² | 9.2903 |
| 150 ft² | 13.935 |
| 200 ft² | 18.581 |
| 250 ft² | 23.226 |
| 500 ft² | 46.452 |
| 750 ft² | 69.677 |
| 1,000 ft² | 92.903 |
| 1,200 ft² | 111.48 |
| 1,500 ft² | 139.35 |
| 2,000 ft² | 185.81 |
| 2,500 ft² | 232.26 |
| 3,000 ft² | 278.71 |
| 5,000 ft² | 464.52 |
Worked example
A 12 ft × 14 ft bedroom is 168 sq ft: 168 × 0.09290304 = 15.61 m². A 5-acre lot is 5 × 0.404686 = 2.023 ha.
Frequently asked questions
How many square feet are in a square meter?
1 m² = 10.7639 sq ft. 1 sq ft = 0.0929 m².
How many acres is a hectare?
1 hectare = 2.47105 acres; 1 acre = 0.404686 ha = 43,560 sq ft.
Why isn't 1 m² equal to 3.28 sq ft?
Because both sides are squared: 3.28084 ft × 3.28084 ft = 10.7639 sq ft.