How many fence post 10 ft apart will you need for a 1 acre pasture?

Specifying the area inside the fence doesn't tell you the dimensions, and the

length of fence needed to enclose it (the perimeter) depends on the shape.

-- The minimum fence that can enclose 1 acre is 740 feet (73 fence posts),

around a circle with a diameter of 236 feet.

-- The minimum fence that can enclose 1 acre with straight sides is 834 feet (83 fence posts),

around a square with 208.7-foot sides.

-- If it has straight sides but it's rectangular (not square), then the bigger the

difference is between the length and width, the more fence (and posts) you need.

For example, if the pasture is 6-ft wide and 7,260-ft long, it's exactly one acre,

the horses have to stand in single-file while they graze, and it takes 14,532 feet

of fence (1,453 fence posts) to enclose it.