How many feet by how many feet equals 1 acre?

Answer 1

43559.45382 ft = 1 acre.

square root of 43559.45832 sq ft = 208.73 ft

-The U.S. acre is actually an even 43,560 (66x660 or 1/8 mi. by 1/80th). The odd decimal comes from improper use of international feet in a U.S. survey acre.

An international acre is 43,560 international feet (exactly 304.8mm each). A U.S. survey acre is still exactly 43,560 feet, they are just very very slightly larger U.S. survey feet which were defined in the late 1890s by the Mendenhall order as 1200/3937 meters (304.8006+ mm).

The difference between international feet and U.S. survey feet is so small as to account for only 1/8 inch per mile distance (or 1/64 sq. in. per square mile). Dividing by 640 to get the variance between U.S. and international acres comes out to about 24.5 millionths of a square inch difference between the two acres.

The correct number of square international feet in a U.S. survey acre is actually 43559.99999992281, not 43.55945832. Not sure where that number was obtained but it makes the difference out to be far larger than it actually is.

Answer 2

1 acre is equal to 43,560 square feet. To find the dimensions in terms of feet by feet, you would need to find the square root of 43,560, which is approximately 208.7 feet by 208.7 feet.