If you have a circle that covers one acre, the circumference is approximately 740 feet (739.86 feet) or 226 meters (225.552 meters)

One acre is equal to 43560 square feet in area.

Use area of a circle formula to determine the radius.

Area of a circle = (pi) x (radius^2)

...rearrange to...

Radius = square root of (Area/pi)

Then plug the radius into the circumference formula

Circumference = 2 x (pi) x (radius)

One acre is equal to 43560 square feet in area.

Use area of a circle formula to determine the radius.

Area of a circle = (pi) x (radius^2)

...rearrange to...

Radius = square root of (Area/pi)

Then plug the radius into the circumference formula

Circumference = 2 x (pi) x (radius)