Acres to Square Feet Converter
This converter turns acres into square feet. One acre equals exactly 43,560 square feet, so the calculator multiplies your acreage by 43,560. Enter an area in acres to see the equivalent in square feet — handy for land, plots and real-estate measurements.
Formula
Square Feet = Acres × 43,560
- One acre is defined as exactly 43,560 square feet.
- Square feet = acres × 43,560.
- To go the other way, divide square feet by 43,560 to get acres.
- An acre also equals 4,840 square yards or about 4,046.86 square metres.
- The conversion is exact, so results are limited only by decimal rounding.
Example Calculation
Inputs
- Area (acres): 1
One acre converts to 1 × 43,560 = 43,560 square feet. A half-acre plot would be 21,780 square feet.
Frequently asked questions
How many square feet are in an acre?
Exactly 43,560 square feet. The converter multiplies your acreage by this figure.
How do I convert acres to square feet?
Multiply the number of acres by 43,560. For example, 2 acres = 2 × 43,560 = 87,120 square feet.
How do I convert square feet back to acres?
Divide the square footage by 43,560. For example, 43,560 sq ft ÷ 43,560 = 1 acre.
Why is an acre 43,560 square feet?
It comes from the historical definition of one chain (66 ft) by one furlong (660 ft), which equals 43,560 square feet.
What else equals one acre?
One acre is 4,840 square yards, about 4,046.86 square metres, or roughly 0.405 hectares.