Acres to Square Feet Conversion Calculator

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.

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.

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.

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.