Acre to Square Feet Converter
1 Acre = 43,560 square feet. Use the free calculator below to convert acres to square feet, and to square metres, hectares, Guntha, cent, Bigha and square yards. The acre is a fixed, internationally standardised unit, so these conversions are exact.
1 Acre = 43,560 sq ft
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The acre to square feet formula
The conversion is fixed:
Square Feet = Acre × 43,560
One acre is defined as 4,840 square yards. Since 1 square yard = 9 square feet, an acre = 4,840 × 9 = 43,560 square feet. Historically an acre was a chain (66 ft) by a furlong (660 ft) = 43,560 sq ft. It equals exactly 40 Guntha, 100 cents, and about 0.4047 hectares.
Acre to square feet conversion table
| Acre | Square Feet | Square Metres | Hectare | Guntha |
|---|---|---|---|---|
| 0.10 acre | 4,356 sq ft | 404.69 | 0.0405 | 4 |
| 0.25 acre | 10,890 sq ft | 1,011.71 | 0.1012 | 10 |
| 0.50 acre | 21,780 sq ft | 2,023.43 | 0.2023 | 20 |
| 0.75 acre | 32,670 sq ft | 3,035.14 | 0.3035 | 30 |
| 1 acre | 43,560 sq ft | 4,046.86 | 0.4047 | 40 |
| 2 acre | 87,120 sq ft | 8,093.71 | 0.8094 | 80 |
| 5 acre | 2,17,800 sq ft | 20,234.28 | 2.0234 | 200 |
| 10 acre | 4,35,600 sq ft | 40,468.56 | 4.0469 | 400 |
Accuracy note
The acre is an exact, internationally standardised unit (1 acre = 43,560 sq ft = 4,046.8564224 m² precisely), so acre ↔ square feet conversions never vary by state. Square-metre and hectare figures above are rounded for display. Note that Guntha (1,089 sq ft) and cent (435.6 sq ft) are standard, but Bigha and Ground are local units — if you convert acres to those, check the regional definition. For any transaction, the binding area is the one recorded in the survey settlement, RTC/7-12 and registered deed.
Frequently asked questions
How many square feet is 1 acre?
1 acre = 43,560 square feet (4,840 square yards × 9). This is a fixed value worldwide.
How do you convert acre to square feet?
Multiply the acre value by 43,560. For example, 2 acres = 87,120 sq ft and half an acre = 21,780 sq ft.
How many Guntha are in 1 acre?
40 Guntha, since 1 Guntha = 1,089 sq ft and 43,560 ÷ 1,089 = 40.
How many cents are in 1 acre?
100 cents (1 cent = 435.6 sq ft). The cent is common in Tamil Nadu, Kerala, Karnataka and Andhra Pradesh.
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