About the Acres to Square Feet Converter
This acres to square feet converter works both ways: turn a lot size in acres into square feet, or turn a square-footage figure into acres. It also shows the same area in square yards, square meters and hectares, which helps when a listing, survey or zoning rule uses a different unit than you do.
Homebuyers checking a lot size, builders working out setbacks and coverage, landscapers pricing sod or seed, and anyone reading a county tax record will find it useful — US property records often list lots in acres while house plans, turf and paving are priced per square foot.
An acre is exactly 43,560 square feet (one chain × one furlong, or 66 ft × 660 ft). There is no fixed shape: any area that adds up to 43,560 sq ft is an acre, whether square, rectangular or irregular.
How to use the acres to square feet converter
- 1Choose the direction: acres to square feet, or square feet to acres.
- 2Enter the area in the starting unit.
- 3Read the result, plus square yards, square meters and hectares.
- 4Use the table to compare common lot sizes.
Formula and method
The acre is defined as 43,560 square feet — historically the area of a strip one furlong (660 ft) long and one chain (66 ft) wide. To convert acres to square feet multiply by 43,560; to convert square feet to acres divide by 43,560.
Square yards are square feet ÷ 9. Square meters use the exact foot (0.3048 m), so 1 sq ft = 0.09290304 m², and hectares are square meters ÷ 10,000. The results assume the international acre; the old US survey acre differs by only about 4 parts per million.
- sq ft
- Area in square feet
- acres
- Area in acres
- 43,560
- Square feet in one acre (exact)
Worked examples
One acre in square feet
One acre is exactly 43,560 sq ft, which is 43,560 ÷ 9 = 4,840 square yards or 4,046.86 m².
Quarter-acre suburban lot
0.25 × 43,560 = 10,890 sq ft, a common lot size for a single-family home in US suburbs.
87,120 sq ft parcel to acres
87,120 ÷ 43,560 = exactly 2 acres.
5,000 sq ft city lot to acres
5,000 ÷ 43,560 = 0.1148 acres — a typical narrow urban lot, about 464.5 m².
Frequently asked questions
How many square feet are in an acre?+
There are exactly 43,560 square feet in one acre. Half an acre is 21,780 sq ft and a quarter acre is 10,890 sq ft.
How do I convert square feet to acres?+
Divide the square footage by 43,560. For example, a 15,000 sq ft lot is 15,000 ÷ 43,560 = 0.344 acres.
How big is an acre compared to a football field?+
An American football field including both end zones is 360 × 160 ft = 57,600 sq ft, about 1.32 acres. Without end zones it is 48,000 sq ft, about 1.1 acres.
What are the dimensions of one acre?+
An acre can be any shape. A square acre is about 208.7 ft on each side; the traditional shape was 66 ft × 660 ft (one chain by one furlong).
How many acres is a typical house lot?+
Newer US single-family lots are commonly around 0.15 to 0.25 acres (6,500 to 11,000 sq ft), while rural lots are often 1 acre or more.