Land Perimeter Calculator
Find the boundary length of a plot to plan fencing, a compound wall or wire.
About the Land Perimeter Calculator
Enter each side's length, separated by spaces, the total width of any gates, and optionally the fencing cost per metre or foot. The calculator gives the perimeter, the fence length after gates and the cost.
The perimeter is the sum of all the sides, whatever the plot's shape. Subtract gate openings for fencing material, but remember gate posts.
The formula
Perimeter = Σ side lengths
Worked example
A four-sided plot of 60, 40, 62 and 38 m with a 4 m gate
- Perimeter: 60 + 40 + 62 + 38 = 200 m
- Fence needed: 200 − 4 = 196 m
- That's about 643 ft
Things to keep in mind
- Measure along the actual boundary; on slopes the fence follows the ground and is slightly longer than the map distance.
Questions people ask
How many poles do I need?
Perimeter ÷ pole spacing + 1 per straight run, plus extra at corners.
Barbed wire quantity?
Fence length × number of strands, plus 5% for tying off.
Do I need the plot's area too?
Use the Plot Area Calculator for rectangles or the Map Area Calculator for irregular shapes.