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Acres to Square Feet Converter

Convert acres (ac) to square feet (sq ft), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an area, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

About valueA number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
About toThe unit you want the answer in. Swap exchanges the two units.
Result
Result
43,560 sq ft
square miles
0.0015625 sq mi
square yards
4,840 sq yd
square inches
6,272,640 sq in
square kilometers
0.0040468564224 km²
hectares
0.40468564224 ha
ares
40.468564224 a
square meters
4,046.8564224 m²
square centimeters
40,468,564.224 cm²
square millimeters
4,046,856,422.4 mm²
square micrometers
4.0468564224 × 10¹⁵ µm²

1 ac = 43,560 sq ft

Show the working
  1. 1 ac = 43560 sq ft
  2. 1 × 43560 = 43560 sq ft

How to convert acres to square feet

1 ac = 43,560 sq ft, so multiply by 43,560 to go from acres to square feet. Going the other way, 1 sq ft = 2.29568411387 × 10⁻⁵ ac.

sq ft = ac × 43,560
ac = sq ft × 2.29568411387

Worked example:

1 ac = 43560 sq ft
5 × 43560 = 217800 sq ft

Acres to square feet table

AcresSquare Feet
1 ac43,560 sq ft
2 ac87,120 sq ft
3 ac130,680 sq ft
4 ac174,240 sq ft
5 ac217,800 sq ft
6 ac261,360 sq ft
7 ac304,920 sq ft
8 ac348,480 sq ft
9 ac392,040 sq ft
10 ac435,600 sq ft
15 ac653,400 sq ft
20 ac871,200 sq ft
25 ac1,089,000 sq ft
30 ac1,306,800 sq ft
40 ac1,742,400 sq ft
50 ac2,178,000 sq ft
75 ac3,267,000 sq ft
100 ac4,356,000 sq ft
250 ac10,890,000 sq ft
500 ac21,780,000 sq ft
1000 ac43,560,000 sq ft

About the units

Square Feet (sq ft)
Square feet, a US customary unit. Definition: NIST Handbook 44 Appendix C (derived from the international foot).

Formula version 0.1.0Reviewed