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 |
| 0.66 acre | 28,749.6 sq ft | 2,670.94 | 0.2671 | 26.4 |
| 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 |
| 2.5 acre | 1,08,900 sq ft | 10,117.14 | 1.0117 | 100 |
| 3 acre | 1,30,680 sq ft | 12,140.57 | 1.2140 | 120 |
| 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 |
| 80 acre | 34,84,800 sq ft | 3,23,748.51 | 32.3748 | 3,200 |
| 200 acre | 87,12,000 sq ft | 8,09,371.28 | 80.9371 | 8,000 |
| 400 acre | 1,74,24,000 sq ft | 16,18,742.57 | 161.8742 | 16,000 |
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. This calculator is provided for convenience only, with no warranty; Plotex accepts no liability for reliance on the figures. See our Terms.
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 square feet is 2 acres?
2 acres = 87,120 sq ft (2 × 43,560). Likewise 2.5 acres = 1,08,900 sq ft.
How many square feet is 5 acres?
5 acres = 2,17,800 sq ft, and 10 acres = 4,35,600 sq ft.
How many square feet is half an acre (0.5 acre)?
0.5 acre = 21,780 sq ft. A quarter acre (0.25) = 10,890 sq ft and 0.75 acre = 32,670 sq ft.
How many square feet is 80 acres (or 400 acres)?
80 acres = 34,84,800 sq ft and 400 acres = 1,74,24,000 sq ft. For any large layout, multiply the acre figure by 43,560.
What is an "ekar" in square feet?
Ekar (एकर) is the Hindi, Gujarati and Marathi word for an acre — so 1 ekar = 43,560 sq ft and half ekar = 21,780 sq ft. The conversion is identical to the acre.
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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