Engineering Zone

Utility Pole Diameter Calculator

Calculate wood utility pole diameter at a specified height using ground-line circumference and pole taper.

Using this calculator

What it checks

Estimate a tapered wood pole diameter at a selected height above ground from measured pole geometry.

Inputs and method

Provide the ground-line circumference, taper, and target height. An optional top circumference allows the target height to be checked against the pole tip.

Design use

Use verified field measurements and the applicable pole specification. This geometry check does not determine structural capacity or remaining pole strength.

Engineering aid only. Verify the inputs, assumptions, results, and applicable project requirements before use in a final design.

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