ACREAGE CONVERTER
Acres to square feet
One acre is exactly 43,560 square feet. Enter the acreage of a lot, a parcel or a whole subdivision and get the square footage, along with the lot sizes builders quote most often.
THE MATH
How it's calculated
Square feet = acres × 43,560.
WORKED EXAMPLE
Given: 2.5 acres
Result: 2.5 × 43,560 = 108,900 square feet
QUESTIONS
Acres to square feet converter questions
How many square feet are in an acre?
Exactly 43,560. The number comes from the surveyor’s chain: an acre is one chain (66 feet) by one furlong (660 feet), and 66 × 660 = 43,560.
How big is an acre on each side?
A perfectly square acre measures about 208.71 feet on a side. Almost no real lot is square, so use the lot size calculator once you have frontage and depth.
Is a commercial acre the same thing?
No. A commercial acre is 36,000 square feet — an acre less a customary allowance for streets, sidewalks and alleys. Recorded plats and deeds use the 43,560 sq ft statute acre.
Should a lot table show acres or square feet?
Both, in the same row. Buyers shopping finished lots compare square feet; buyers shopping acreage compare acres. Publishing one number forces half your audience to do math.
Related calculators
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Square feet to acres converter
Divide square feet by 43,560 to get acres. This is the conversion you need when a plat lists lot areas in square feet and a lender, an appraiser or a buyer wants the acreage.
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Lot size calculator
Enter frontage and depth to get lot area in square feet and in acres. It is the fastest way to size lots off a site plan while the subdivision is still being laid out.
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Lots per acre calculator
Estimate lot yield before the engineer draws it. Take right-of-way, detention and open space out of the gross acreage first — usually 15% to 25% of a conventional single-family subdivision — then divide the net area by your average lot size.
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