Fence Post Calculator
Enter your total fence length, desired post spacing and whether it's a closed loop to calculate how many posts you need.
Fence Post Calculator
Calculate the number of fence posts needed based on total fence length and post spacing.
This calculator divides your total fence length by the post spacing to find the number of segments, then adds one extra post for a straight (non-looped) run, since a loop needs exactly one post per segment.
Example
- With the default values shown above, this calculator returns: Number of Segments ≈ 13.00; Posts Needed ≈ 13.
Frequently Asked Questions
How does the formula work?
The fence is divided into segments of your chosen spacing (rounding up if it doesn't divide evenly). A closed loop (like a yard perimeter) needs one post per segment; a straight run needs one extra post at the very end.
What's a typical post spacing?
6 to 8 feet is common for most residential wood and vinyl fencing, though it varies by fence type and local wind/soil conditions.