Fence Calculator

Calculate the total linear feet of fencing needed, number of fence panels, posts, and estimated material cost. Works for rectangular yards or any custom perimeter.

Fence Material Estimator

Fence Installation Tips

Perimeter = 2 × (Length + Width) Linear Feet = Perimeter − (Gates × Gate Width) Panels = ceil(Linear Feet / Panel Width) Posts = ceil(Linear Feet / Post Spacing) + 1 Standard post spacing: 6–8 ft Posts set 1/3 of height in ground Add 10% waste factor for gates and corners

Frequently Asked Questions

How deep should fence posts be set?+
The general rule is to bury 1/3 of the post length underground. For a 6-foot fence, use 9-foot posts buried 3 feet deep. In frost-prone areas, posts must extend below the frost line (typically 30–48 inches) to prevent frost heaving. Use concrete or gravel for post footings.
What type of fencing lasts longest?+
Aluminum and vinyl fencing are the most low-maintenance, lasting 20–30+ years. Chain link lasts 15–20 years. Pressure-treated wood lasts 10–15 years with maintenance. Wrought iron can last 50+ years but requires rust prevention. Choice depends on budget, aesthetics, and climate.

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About the Fence Calculator

This free fence calculator helps you get accurate results instantly without needing to work through the math manually. Whether you need a quick estimate or a precise figure, having a reliable tool on hand saves time and reduces errors compared to manual calculation.

How to Use This Calculator

  1. Enter your values in the input fields above. Each field is labeled to guide you.
  2. Double-check your inputs — results are only as accurate as the numbers you enter.
  3. Click the Calculate button to see your result instantly.
  4. Use the result for your planning, budgeting, or decision-making.

Why Accurate Calculations Matter

Small errors in math calculations can compound into significant problems. A 1% miscalculation in a budget or measurement can translate to hundreds or thousands of dollars in wasted resources, or result in having to redo work entirely. This calculator uses the standard formulas and methods to give you reliable results you can trust.

Tips for Getting the Best Results

Frequently Asked Questions

Is this calculator free? Yes — completely free with no account, login, or payment required. Use it as many times as you need.

How accurate are the results? This calculator uses the standard formulas for fence calculations. Results are accurate for typical use cases. For specialized or high-stakes applications, consult a professional.

Does it work on mobile? Yes. This calculator is fully responsive and works on smartphones, tablets, and desktops.