How do you convert acres to square feet?

To convert acres to square feet, multiply the acre value by 43,560. For example: 1) 1 ac = 43,560 sq ft, 2) 2 ac = 87,120 sq ft, 3) 0.5 ac = 21,780 sq ft. Our calculator handles this automatically.

What is 1 acre equal to in square feet?

1 acre equals exactly 43,560 square feet. This is a standard conversion used worldwide in land measurements. For quick estimates, you can think of 1 acre as about 44,000 square feet, or 1/2 acre as about 22,000 square feet.

Why would I need to convert acres to square feet?

Converting acres to square feet is useful when: 1) Planning construction projects, 2) Calculating property dimensions, 3) Determining building footprints, 4) Working with land development and real estate.

How many square feet make an acre?

1 acre equals exactly 43,560 square feet. This measurement comes from the historical definition of an acre as an area one furlong long by one chain wide. Today, it's standardized as 43,560 square feet worldwide.

Acres to Square Feet Conversion Calculator

Acre (ac) to Square Foot (sq ft) Converter

Symbol: ac (acres), sq ft (square feet)

What they are:

The acre is a unit of land area used in imperial and US customary systems, while the square foot is a smaller unit of area equal to a square that is one foot on each side.

Conversion Facts:

1 acre = 43,560 square feet
1 square foot = 0.0000229568 acres
0.5 acres = 21,780 square feet
0.25 acres = 10,890 square feet

From:

Acre (ac)

To:

Square Foot (ft²)

Conversion Result

1 ac=

1.000 ft²

Use the converter above to calculate different values and units

What are Area Measurements?

Area measurements quantify the extent of a two-dimensional surface. Acres and square feet are two common units used for measuring land and building areas, particularly in the United States and other countries that use imperial and US customary units.

The relationship between acres and square feet is precisely defined: 1 acre equals exactly 43,560 square feet. This conversion is essential for land development, property transactions, construction projects, and various other applications involving area calculations.

Common Acres to Square Feet Conversions

Acres (ac)	Square Feet (sq ft)	Common Reference
0.1	4,356	Small suburban lot
0.25	10,890	Typical residential lot
0.5	21,780	Large residential lot
1	43,560	American football field (without end zones)
2	87,120	Average size of a city block
5	217,800	Small farm plot
10	435,600	Small commercial development
100	4,356,000	Medium-sized farm

Practical Use Cases

Real Estate: Converting between acres and square feet for property listings, land transactions, and zoning requirements
Construction: Calculating building footprints in relation to lot size and determining material quantities
Land Development: Planning subdivisions, calculating density limits, and determining setback requirements
Agriculture: Determining crop yields per unit area and planning irrigation systems
Landscaping: Estimating material needs for large areas like sod, mulch, or gravel
Environmental Planning: Calculating conservation areas, wetland mitigation, or wildlife habitats

Educational Resource

This educational video explains the relationship between acres and square feet and demonstrates how to convert between these units with practical examples and applications.

Conversion Tools

Download Conversion Chart (PDF)

Get our comprehensive acres to square feet conversion chart for quick reference when you're offline.

Acres to Square Feet Conversion FAQs

Find answers to common questions about converting between acres and square feet.