Acres to Square Feet converter (ac to ft²)
Convert Acres (ac) to Square Feet (ft²) with this free calculator. Type a value, press Convert, and the page applies the same factor shown in the formula below — no rounded shortcut, and nothing is stored on a server.
Square Feet to Acres (ft² to ac) ►
How to convert Acres to Square Feet
1 acre is equal to 43,560 square feet (ft²).
ft² = ac × 43,560
Multiply the acres by 43,560:
Example: Convert 2 acres to ft²:
ft² = 2 × 43,560 = 87,120 ft²
What is a Acres?
The Acres (ac) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
What is a Square Feet?
The Square Feet (ft²) is the starting or target unit on this page. Use the calculator above to convert values without looking up the factor by hand.
This page converts area from Acres into Square Feet. One ac equals 43560 ft².
Acres to Square Feet conversion table
Common ac values and the matching ft² result, calculated with the same factor as the widget. Highlight a nearby row if you want a quick check without entering a number.
| Acres (ac) | Square Feet (ft²) |
|---|---|
| 0.1 ac | 4356 ft² |
| 0.5 ac | 21780 ft² |
| 1 ac | 43560 ft² |
| 2 ac | 87120 ft² |
| 5 ac | 217800 ft² |
| 10 ac | 435600 ft² |
| 50 ac | 2178000 ft² |
| 100 ac | 4356000 ft² |
How this calculator works
The form on this page is a Acres-to-Square Feet converter. After you enter a number, JavaScript multiplies or rearranges it with the published conversion factor and writes the ft² result in the output box. The step-by-step panel repeats the arithmetic so you can copy it into homework or a spreadsheet.
Reviewed by Hamsen, founder of GigaTables and a biology engineer. See the about page for how formulas are checked before a tool is published.
FAQ
How many ft² are in 1 ac?
1 ac = 43560 ft².
How do I convert Acres to Square Feet?
Multiply the acres by 43,560:
Is this ac to ft² converter free?
Yes. GigaTables calculators are free to use in a browser. You do not need an account, and the values you type are not uploaded.