Acres to Square Feet (ac to ft²) Converter

Acres to Square Feet

1 acre = 43,560 square feet. To convert acres (ac) to square feet (ft²), multiply by 43,560.

Acres (ac)

Square feet (ft²)

How to convert acres to square feet

ft² = ac × 43,560

Example: convert 10 acres to square feet.
10 ac × 43,560 = 435,600 ft²

The same relationship in reverse: 1 square foot = 0.000022956841 acres, so you can also divide by 0.000022956841. Need the other direction? Use the square feet to acres converter.

You will typically need this conversion for US real estate plots and building footprints.

Acres to Square Feet conversion chart

Acres (ac)	Square Feet (ft²)
0.1 ac	4,356 ft²
0.25 ac	10,890 ft²
0.5 ac	21,780 ft²
0.75 ac	32,670 ft²
1 ac	43,560 ft²
2 ac	87,120 ft²
5 ac	217,800 ft²
10 ac	435,600 ft²
20 ac	871,200 ft²
40 ac	1,742,400 ft²
100 ac	4,356,000 ft²

Values rounded to 8 significant figures. The converter above shows up to 12.

About the units

Acre (ac)

43,560 square feet, about 4,047 m². Used for land and real estate in the US, UK and much of the Commonwealth.

Square Foot (ft²)

The area of a square 1 ft on each side. Used for home and office sizes in the US, UK, UAE and India.

Frequently asked questions

How many square feet are in a acre?

1 acre = 43,560 square feet. Going the other way, 1 square foot = 0.000022956841 acres.

How do I convert acres to square feet?

To convert acres to square feet, multiply by 43,560. The formula is ft² = ac × 43,560.

What is 10 ac in ft²?

10 acres is 435,600 square feet (10 ac × 43,560 = 435,600 ft²).