Estimate posts, sections, rails and pickets for a fence. Each dimension has its own unit selector (in/ft/yd/m).
Measure each straight run (any unit) and add them for the total length. Sections are the total divided by your post spacing (commonly 8 ft - use the preset), and you need one more post than sections. Rails are the per-section count; pickets are the length in inches divided by picket width plus gap. Add posts for gates and corners.
Use the fence calculator to estimate posts, sections, rails, pickets and cost from total fence length. It is best for early planning before you mark gates, corners and property constraints.
Start with the calculator that matches how your material is sold: area, length, volume, count, weight or electrical load. Enter one work area at a time, use the unit selector beside each measurement, then review the order quantity and cost fields before comparing supplier quotes.
Most calculators can save the current estimate in your browser, reload named estimates, print a copy, switch to dark mode or create a shareable link. Those tools are intended for planning and communication; always confirm final quantities, coverage rates, density, code requirements and pricing with the supplier or contractor responsible for the work.