Square Feet to Acres Calculator

Convert square feet to acres, square yards, square meters, hectares, and square miles. Estimate net acreage, extra area, material units, land value, and project cost.

Convert Square Feet to Acres

Acres = Square Feet ÷ 43,560. Net Acres = (Square Feet − Excluded Square Feet) ÷ 43,560.
Your result will appear here.

How the square feet to acres calculator works

Basic conversion:
The calculator divides square feet by 43,560 to convert square feet into acres.

Net area:
The calculator subtracts excluded square feet before calculating net usable acres.

Extra area:
The calculator adds your extra percentage for overlap, waste, coverage planning, or project buffer.

Cost estimate:
The calculator estimates land value, material cost, labor cost, and total project cost from your inputs.

Why use a square feet to acres calculator?

A square feet to acres calculator helps convert measured land, lot, field, yard, and property square footage into acres for easier land planning.

It can help calculate acres, net acres, square yards, square meters, hectares, square miles, material units, land value, labor cost, and estimated project cost.

What your result means

Your result shows gross acres, excluded square feet, net acres, square feet with extra, square yards, square meters, hectares, square miles, material units, land value, material cost, labor cost, and estimated total cost.

Square feet to acres formulas

Frequently asked questions

How many square feet are in an acre?

One acre equals 43,560 square feet.

How do I convert square feet to acres?

Divide square feet by 43,560. For example, 87,120 square feet equals 2 acres.

How many acres is 21,780 square feet?

21,780 square feet equals 0.5 acres.

How many acres is 10,890 square feet?

10,890 square feet equals 0.25 acres.

Is this square feet to acres calculator exact?

The square-feet-to-acres conversion is exact, but project estimates can vary by exclusions, waste, overlap, coverage rates, slopes, boundaries, and measurement method.