How to use this calculator
- Enter or choose area.
- Enter or choose from.
- Enter or choose to.
- The converted area updates as you type. Use Copy result or Share to keep it.
Method
Result = Area × (m² per From unit) ÷ (m² per To unit); 1 acre = 43,560 sq ft = 4,046.8564224 m²; 1 ha = 10,000 m²
- m² per unit
- 1 sq ft = 0.09290304 m²; 1 cent = 1/100 acre; 1 guntha = 1/40 acre; 1 ground = 2,400 sq ft; 1 tsubo = 400/121 m²; 1 rai = 1,600 m²; 1 mu = 666⅔ m²; 1 dunam = 1,000 m²; 1 feddan = 4,200 m²
Worked example
- 1 acre = 4,046.8564224 m² by definition.
- 4,046.8564224 ÷ 0.09290304 = 43,560 sq ft.
- In hectares: 4,046.856 ÷ 10,000 = 0.404686 ha.
One acre is exactly 43,560 square feet, or about 0.4047 hectares.
What the result means
Customary units such as the bigha, kanal and marla vary by state or district, so they are left out rather than given a misleading single value. Check the local definition and convert through square feet.
Assumptions and limits
- International (not US survey) foot: 1 ft = 0.3048 m.
- The dunam is the metric dunam of 1,000 m².
- Results are rounded to six decimal places.
Questions
How many cents are in an acre?
100. A cent is one-hundredth of an acre, 435.6 square feet, a unit used in South India.
What is the difference between a hectare and an acre?
A hectare is 10,000 m²; an acre is 4,046.86 m². One hectare is about 2.471 acres.