The Fencing Needed for Polygon Area formula computes the length of the fence line based on the shape of the fenced in area (number of equal length sides - n) and the area (A).
Polygon Area (A), Side Length (s),
and Number of Sides
INSTRUCTIONS: Choose units and enter the following
- (n) Number of equal length Sides in fenced area
- (A) Area inside Fence
Fence Perimeter Length (P): The calculator returns the perimeter of the area in feet. The calculator also returns the length of the individual sides (s) in feet. However, these can be automatically converted to compatible unit via the pull-down menu.
The Math / Science
Basic math can be used to compute the length of fencing need to surround an area if you know the area (A) and the shape. The shape is defined by the number of equal length sides. For example a regular triangle has three sides, a square has four, a pentagon has five, etc. All of these are regular polygons. Enter your area and the number of sides that define the shape of your fencing area.
Fence Calculators
- Number of Posts and Rails: Computes the number of fence posts and rails needed for a length of wood fencing.
- Post and Rail Fence Cost Estimate : Computes material costs for post and rail fence based on the number of posts and rails (above) and unit cost pricing.
- Wire Fence Materials: Computes the materials needed for a high tension fence.
- Wire Fence Cost Estimate Computes the materials and costs of a high tension wire fence.
- Labor Cost for Posts : Computes the approximate cost of labor in digging and setting fence posts based on the length of the fence, uniform distance between posts, method of digging (by hand, power auger) and the hourly labor pay rate (DPH).
- Perimeter of a Rectangular Shaped Area computes the length of a fence perimeter in a rectangular shaped area base on the length (l) and width (w) of the area.
- Diagonal of Rectangle Area computes the diagonal measurement of a rectangular area. This is useful in ensuring that your area has square corners.
- Circular Fence Calc computes the diameter, number of posts, rails, perimeter and area of a circular shaped fenced area (paddock).
- Fencing Needed for Circular Area computes the number of posts, number of sections, sides or panels, number of rail boards, perimeter and area of a circular shaped area (paddock) based on a diameter and length of sides (e.g., .
See Also