# square foot to acre conversion

Conversion number between square foot [sq ft] and acre [ac] is 2.2956841138659 × 10-5. This means, that square foot is smaller unit than acre.

### Contents [show][hide] Switch to reverse conversion:
from acre to square foot conversion

### Enter the number in square foot:

Decimal Fraction Exponential Expression
 [sq ft]
eg.: 10.12345 or 1.123e5

Result in acre

?
 precision 0 1 2 3 4 5 6 7 8 9 [info] Decimal: Exponential:

### Calculation process of conversion value

• 1 square foot = (exactly) (0.09290304) / (4046.8564224) = 2.2956841138659 × 10-5 acre
• 1 acre = (exactly) (4046.8564224) / (0.09290304) = 43560 square foot
• ? square foot × (0.09290304  ("m²"/"square foot")) / (4046.8564224  ("m²"/"acre")) = ? acre

### High precision conversion

If conversion between square foot to square-metre and square-metre to acre is exactly definied, high precision conversion from square foot to acre is enabled.

Decimal places: (0-800)

square foot
Result in acre:
?

### square foot to acre conversion chart

 Start value: [square foot] Step size [square foot] How many lines? (max 100)

visual:
square footacre
00
100.00022956841138659
200.00045913682277319
300.00068870523415978
400.00091827364554637
500.001147842056933
600.0013774104683196
700.0016069788797062
800.0018365472910927
900.0020661157024793
1000.0022956841138659
1100.0025252525252525
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## Multiple conversion

Enter numbers in square foot and click convert button.
One number per line.

Converted numbers in acre:
Click to select all

## Details about square foot and acre units:

Convert Square foot to other unit:

### square foot

Definition of square foot unit: ≡ 1 ft × 1 ft. ≡ 0.3048 × 0.3048 = 9.290304×10−2 m²

Convert Acre to other unit:

### acre

Definition of acre unit: ≡ 1 ch × 10 ch = 4840 sq yd = 1⁄640 sq mi. International and US survey acre ≡ 4840 × 0.9144 × 0.9144 = 4046.8564224 m² ← Back to Area units 