Square Feet to Acres Converter
1 acre = 43,560 square feet exactly. Used in US real estate and land measurement.
Formula:1 acre = 43,560 ft2
⇄ Switch to Acres To Square FeetSq. foot to Acre — common values
1 ft²0.0000229568 ac
10 ft²0.000229568 ac
100 ft²0.00229568 ac
1,000 ft²0.0229568 ac
10,000 ft²0.229568 ac
100,000 ft²2.2956811 ac
1,000,000 ft²22.956811 ac
How to convert Square Feet To Acres
To convert square feet to acres, use the formula: 1 acre = 43,560 ft2. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to Acres To Square Feet” link to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000) and are accurate to 8 significant figures.
Frequently Asked Questions
What is the formula to convert Square Feet To Acres?
1 acre = 43,560 ft2. 1 acre = 43,560 square feet exactly. Used in US real estate and land measurement.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Acres To Square Feet?
Use the Acres To Square Feet converter or click the ⇄ switch button above.
More Area conversions
Need more area conversions?
The full converter supports all unit combinations