About this calculator
Type a number, choose the unit you have and the unit you want, and this converter gives you the answer at once, along with the same area and land in every other unit it knows.
Every conversion factor is exact by definition wherever one exists, and each result shows the working so you can check it.
Worked examples
Real numbers, worked out by the same calculator. Press “Use these numbers” to try one above.
1 acres to m²
- square metres (m²)
- 4,046.8564224 m²
- square kilometres (km²)
- 0.0040468564224 km²
- square centimetres (cm²)
- 40,468,564.224 cm²
- square millimetres (mm²)
- 4,046,856,422.4 mm²
- hectares (ha)
- 0.40468564224 ha
- square feet (ft²)
- 43,560 ft²
- square inches (in²)
- 6,272,640 in²
- square yards (yd²)
- 4,840 yd²
- square miles (mi²)
- 0.0015625 mi²
1 acre is 4,046.8564224 m².
Show the working
- Change to the base unit (m²): 1 acres × 4,046.8564224 = 4,046.8564224 m².
- Change to m²: 4,046.8564224 ÷ 1 = 4,046.8564224 m².
1 ha to acres
- acres
- 2.47105381467 acres
- square metres (m²)
- 10,000 m²
- square kilometres (km²)
- 0.01 km²
- square centimetres (cm²)
- 100,000,000 cm²
- square millimetres (mm²)
- 10,000,000,000 mm²
- square feet (ft²)
- 107,639.104167 ft²
- square inches (in²)
- 15,500,031.0001 in²
- square yards (yd²)
- 11,959.900463 yd²
- square miles (mi²)
- 0.00386102158542 mi²
1 ha is 2.47105381467 acres.
Show the working
- Change to the base unit (m²): 1 ha × 10,000 = 10,000 m².
- Change to acres: 10,000 ÷ 4,046.8564224 = 2.47105381467 acres.
1,000 ft² to m²
- square metres (m²)
- 92.90304 m²
- square kilometres (km²)
- 0.00009290304 km²
- square centimetres (cm²)
- 929,030.4 cm²
- square millimetres (mm²)
- 92,903,040 mm²
- hectares (ha)
- 0.009290304 ha
- acres
- 0.0229568411387 acres
- square inches (in²)
- 144,000 in²
- square yards (yd²)
- 111.111111111 yd²
- square miles (mi²)
- 0.00003587006428 mi²
1,000 ft² is 92.90304 m².
Show the working
- Change to the base unit (m²): 1,000 ft² × 0.09290304 = 92.90304 m².
- Change to m²: 92.90304 ÷ 1 = 92.90304 m².
How to convert by hand
Every area unit is a fixed multiple of the square metre. Multiply by the size of the unit you have (in m²), then divide by the size of the unit you want. For example, 2 acres × 4,046.8564224 = 8,093.7128448 m².
Squared units convert with the square of the length factor: 1 foot is 0.3048 m, so 1 square foot is 0.3048² = 0.09290304 m².
Conversion factors used
Each unit is stored as its size in m². The sizes below are the ones this converter uses.
| Unit | Size |
|---|---|
| square metres (m²) | 1 m² |
| square kilometres (km²) | 1,000,000 m² |
| square centimetres (cm²) | 0.0001 m² |
| square millimetres (mm²) | 0.000001 m² |
| hectares (ha) | 10,000 m² |
| acres | 4,046.8564224 m² |
| square feet (ft²) | 0.09290304 m² |
| square inches (in²) | 0.00064516 m² |
| square yards (yd²) | 0.83612736 m² |
| square miles (mi²) | 2,589,988.11034 m² |
Common conversions
| From | To |
|---|---|
| 1 ha | 10,000 m² |
| 1 acres | 0.40468564224 ha |
| 1 acres | 43,560 ft² |
| 1 ft² | 0.09290304 m² |
| 1 m² | 10.7639104167 ft² |
| 1 yd² | 0.83612736 m² |
| 1 mi² | 2.58998811034 km² |
| 1 km² | 100 ha |
Acres and hectares
A hectare is 10,000 m² (a 100 m by 100 m square). An acre is 43,560 square feet, about 0.4047 hectares, and there are 640 acres in a square mile.
Frequently asked questions
How many square feet are in an acre?
An acre is 43,560 square feet.
How many acres are in a hectare?
A hectare is about 2.4711 acres.
How do I convert square metres to square feet?
Multiply by 10.7639 (1 ÷ 0.09290304).
How accurate is this converter?
It uses the exact defined factors wherever they exist and shows up to 12 significant digits, so the results are accurate to far more digits than you will normally need.
Formulas tested against hand-worked answers. Last reviewed 29 September 2026. These calculators do arithmetic only; they are not financial, tax or legal advice.