Fence Area Calculator

Calculate fence square footage from fence length and height. Estimate fence panels, posts, pickets, rails, gates, paint or stain area, waste, and project cost.

Calculate Fence Area

Fence Area = Fence Length × Fence Height. Paint / Stain Area = Fence Area × Painted Sides.
Your result will appear here.

How the fence area calculator works

Straight fence mode:
The calculator multiplies fence length by fence height to estimate fence square footage.

Multiple sides mode:
The calculator multiplies one side by the number of same-size fence sides.

Perimeter fence mode:
The calculator estimates fence length from a rectangular perimeter, then multiplies by fence height.

Known area mode:
The calculator starts from your known fence area and estimates panels, posts, pickets, paint or stain, and cost.

Why use a fence area calculator?

A fence area calculator helps estimate square footage for wood fences, privacy fences, vinyl fences, chain link fences, fence staining, fence painting, and fence material planning.

It can help calculate fence area, paint or stain area, fence panels, posts, pickets, rails, gallons, waste, and estimated project cost.

What your result means

Your result shows fence length, fence area, gate area, adjusted fence area, paint or stain area, area with waste, fence panels, posts, pickets, rail length, paint or stain gallons, and estimated cost.

Fence area formulas

Frequently asked questions

How do I calculate fence square footage?

Multiply fence length by fence height. For example, a 100 foot long and 6 foot high fence has 600 square feet on one side.

How do I calculate fence paint or stain area?

Multiply fence area by the number of sides being painted or stained. If you paint both sides, double the fence area.

How many fence panels do I need?

Divide total fence length by the panel width, then round up. For example, 100 feet of fence using 8 foot panels needs 13 panels.

How many fence posts do I need?

Divide fence length by post spacing, then add one end post. Corners, gates, and layout changes may require extra posts.

Is this fence calculator exact?

No. It is an estimate. Actual fence material needs vary by layout, slopes, corners, gates, post spacing, panel size, board spacing, waste, and installation method.