Convert Acre to Square Foot
Convert Acre to Square Foot instantly. 1 ac = 43,560 ft². Formula, worked examples and a quick reference table.
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One acre equals 43,560 square foots. To convert any number of acres to square foots, multiply by 43,560.
The converter above works in both directions and updates as you type. Below you will find the formula, a worked example and a reference table of common values.
Acre to Square Foot formula
To go the other way, use acre = square foot ÷ 43,560.
About these units
An acre is 43,560 square feet, historically about the area one person could plough in a day with a yoke of oxen. It is still standard in US and UK land dealings.
Acre to Square Foot conversion table
| Acre | Square Foot |
|---|---|
| 1 ac | 43,560 ft² |
| 2 ac | 87,120 ft² |
| 3 ac | 130,680 ft² |
| 5 ac | 217,800 ft² |
| 10 ac | 435,600 ft² |
| 20 ac | 871,200 ft² |
| 25 ac | 1,089,000 ft² |
| 50 ac | 2,178,000 ft² |
| 100 ac | 4,356,000 ft² |
| 250 ac | 10,890,000 ft² |
| 500 ac | 21,780,000 ft² |
| 1,000 ac | 43,560,000 ft² |
Frequently asked questions
How many square foots are in a acre? +
There are 43,560 square foots in one acre.
What is 10 ac in ft²? +
10 ac equals 435,600 ft². Multiply 10 by 43,560.
How do I convert square foot back to acre? +
Use acre = square foot ÷ 43,560. The converter above handles both directions, or see our dedicated Square Foot to Acre page.