Use the selected fence height
The calculator first converts your height input to feet. It multiplies that result by 1.5 to create the estimated post length shown in the formula notes.
estimated post length = fence height × 1.5
Changing the selected height unit changes the converted height that the calculator uses for this display.
See the implied embedment value
The formula notes then divide the estimated post length by three. That result is labeled as one-third embedment in the calculator's visible calculation summary.
implied embedment = estimated post length ÷ 3
Keep this separate from the post count
Post length is calculated from fence height. The number of posts is a separate result based on the net run, selected spacing, and gate count. Reading both formula notes helps keep the tool's planning quantities distinct.
Use the display as a planning aid
These values describe this calculator's planning method for one continuous run. Confirm the final fence design, post system, product information, site conditions, and local requirements before buying materials or building.