# Convert square feet to acres

Enter the number of square feet you want to convert to acres in the text box below. The conversion to area in acres will update as you type.

square feet (sq ft)
1 square feet = 2.296×10-5 acres

## Precise decimal and fraction answers

The conversion in acres rounded to six significant decimal places is 1 sq ft = 2.29568E-05 acre. The precise fraction answer is 1/43560 acre.

### Decimal Precision

Conversion from one to ten decimal places

• 1 sq ft = 2E-05 acre
• 1 sq ft = 2.3E-05 acre
• 1 sq ft = 2.30E-05 acre
• 1 sq ft = 2.296E-05 acre
• 1 sq ft = 2.2957E-05 acre
• 1 sq ft = 2.29568E-05 acre
• 1 sq ft = 2.295684E-05 acre
• 1 sq ft = 2.2956841E-05 acre
• 1 sq ft = 2.29568411E-05 acre
• 1 sq ft = 2.295684114E-05 acre

## Square feet to acres conversion factor and formulas

Formula

The conversion factor between square feet and acres is 43,560. This represents the ratio of square feet per one acre. To calculate the value in acres, we can either divide by the conversion factor or multiply by its inverse.

### Division

To convert from square feet to acres, divide square feet by 43,560.
The formula is expressed as:
sq ft ÷ 43,560 = acre

### Multiplication

Alternatively we can multiply by the inverse conversion factor to get the same result.
The inverse of 43,560 is 1/43,560 or 0. To convert from square feet to acres, multiply square feet by 0.
The formula is expressed as:
sq ft × 0 = acre

When converting from from square feet to acres, both units are within the US Customary / UK Imperial system and conversion factors are governed by standards set by the controlling body.

## Reverse this conversion

Convert from acres to square feet instead.

## 1 square feet to other area units

### Metric

• 1 sq ft = 9.29×10-6 ha
• 1 sq ft = 9.29×10-8 km2
• 1 sq ft = 0.093 m2
• 1 sq ft = 9.29 dm2
• 1 sq ft = 929.03 cm2
• 1 sq ft = 92,903.04 mm2
• 1 sq ft = 9.29×1010 µ2
• 1 sq ft = 9.29×1016 nm2

### Imperial/U.S.

• 1 sq ft = 2.296×10-5 acre
• 1 sq ft = 3.587×10-8 sq mi
• 1 sq ft = 0.111 sq yd
• 1 sq ft = 1 sq ft
• 1 sq ft = 144 sq in

## References and Citations

1. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement

## Square feet to acres conversion table

sq ft acre
1 sq ft 2.296×10-5 acre
2 sq ft 4.591×10-5 acre
3 sq ft 6.887×10-5 acre
4 sq ft 9.183×10-5 acre
5 sq ft 1.148×10-4 acre
6 sq ft 1.377×10-4 acre
7 sq ft 1.607×10-4 acre
8 sq ft 1.837×10-4 acre
9 sq ft 2.066×10-4 acre
10 sq ft 2.296×10-4 acre
sq ft acre
20 sq ft 4.591×10-4 acre
30 sq ft 6.887×10-4 acre
40 sq ft 9.183×10-4 acre
50 sq ft 0.001 acre
60 sq ft 0.001 acre
70 sq ft 0.002 acre
80 sq ft 0.002 acre
90 sq ft 0.002 acre
100 sq ft 0.002 acre
1,000 sq ft 0.023 acre