To convert square feet to acres, divide by 43560.
Examples
To convert square feet to acres, you can use the conversion formula: 1 square foot = 1 / 43560 acre. You can find below five examples of converting square feet to acres:
Example: Convert 10,000 square feet to acres:
10 000 sq ft = 10 000 / 43 560 sq = 0.230 acres (rounded to 3 decimal places)
Example: Convert 25,000 square feet to acres:
25 000 sq ft = 25 000 / 43 560 = 0.574 acres (rounded to 3 decimal places)
Example: Convert 50 000 square feet to acres:
50 000 sq ft = 50 000 / 43 560 = 1.148 acres (rounded to 3 decimal places)
Example: Convert 75 000 square feet to acres:
75 000 sq ft = 75 000 / 43 560 = 1.722 acres (rounded to 3 decimal places)
Example: Convert 100 000 square feet to acres
100 000 sq ft = 100 000 / 43 560 = 2.296 acres (rounded to 3 decimal places)
Conversion table square feet to acres (ft2 to ac)
Square feet (ft^{2}) to acres (ac) 
1 ft^{2} = 0.00002296 ac 
10 ft^{2} = 0.00022957 ac 
100 ft^{2} = 0.00229568 ac 
1 000 ft^{2} = 0.02295684 ac 
10 000 ft^{2} = 0.22956841 ac 
100 000 ft^{2} = 2.29568411 ac 
1 000 000 ft^{2} = 22.95684114 ac 
Square feet
A square foot is a unit of area in both the US customary and imperial measurement systems. It is defined as the area of a square with sides of one foot (0.3048 meters) in length. One square foot is equal to 0.092903 square meters, or approximately 9.29 square decimeters. The symbol for square feet is "ft²". To convert feet to yards, you can use the conversion factor of 1 yard equals 3 feet.
The foot (symbol: ft) is a unit of length. Historically, the foot was based on the length of the human foot. It is part of the imperial and US customary measurement systems. The foot is equal to 12 inches.
Acres
An acre is a unit of area used in the imperial and US customary systems. It is defined as the area of one chain by one furlong (66 feet by 660 feet), which is exactly 10 square chains or 43 560 square feet. An acre is about 40% of a hectare (the SI unit of area). The symbol for acre is "ac". The word "acre" comes from Old English æcer, which means "field". The term was first used in the context of land measurement in the 14th century. In the United States, the acre is legally defined as an area of 43 560 square feet or 4 840 square yards. This definition was established by the international yard and pound agreement of 1959.
