# Acres to Square Feet | ac to sq ft

## Calculator Use

Convert area units of acres (ac) to square feet (ft²). Answer will include the formula for quick conversions from ac to ft².

To convert ft² to ac use the Square Feet to Acres Converter

## How to convert acres to square feet

Multiply acre area by 43,560

### Explanation:

1 acre is defined as exactly 43,560 square feet. Stated differently, there are 43,560 square feet in an acre and this can be written 43,560 ft²/ac.

Therefore, to convert acreage to square feet multiply acres by 43,560 ft²/ac. Units of ac will cancel, and you are left with ft² area units.

ft² = ac × 43,560 ft²/ac

Alternatively 1 square foot is 1/43,560 acres which is about 2.295684E-5 ac. Therefore, we can divide acres by 2.295684E-5 ac/ft² to convert to feet squared. The ac units cancel and ft² units remain.

ft² = ac ÷ 2.295684E-5 ac/ft²

Example: Convert 5 acres to square feet.

5 ac to ft² is calculated here using the multiplication factor 43,560

5 ac × 43,560 ft²/ac

Multiply through and cancel ac units

5 ~~ac~~ × 43,560
ft²/~~ac~~ = 217,800 ft²

5 ac = 217,800 ft²

## Square Foot

A
square foot is a unit of area and has the symbol
**ft²** but you will also see people use sf, sqft and sq ft. Three square feet can be expressed as
**3 ft²**. 1 square foot is the area of a square that has all sides equal to 1 foot. The length and width of this square is 1 ft x 1 ft = 1 ft² since area of a square is calculated by multiplying length by width. The foot is a unit of length in the
British imperial system of units and
United States customary units. 1 square foot is exactly 1/43,560 acres.

## Acre

The
acre is a unit of area and has the symbol
**ac**. Historically an acre is a measure of land area in the
British imperial system of units and
United States customary units and was defined as exactly 66 ft x 660 ft which equals 43,560 ft². 1 ac = 43,560 ft². Therefore, 1 ft² is exactly 1/43,560 ac which is about 0.0000229568411 ac. 1 ft² ≈ 2.295684E-5 ac.

**Cite this content, page or calculator as:**

Furey, Edward "Acres to Square Feet | ac to sq ft" at https://www.calculatorsoup.com/calculators/conversions/acres-to-square-feet.php from CalculatorSoup,
*https://www.calculatorsoup.com* - Online Calculators

Last updated: August 21, 2023