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Concrete Footing and Post Hole Calculator

Estimate cylindrical footing/post-hole concrete volume and whole bags from project dimensions and labeled bag yield.

Inputs

Range: at least 1

Enter a whole number of holes; integer-only entry is not enforced by the current Core field.

Range: at least 0.01 in

Use the actual or plan-specified clear hole diameter.

Range: at least 0.01 ft

Enter the concrete depth only; post embedment, gravel, and unfilled hole depth are not inferred.

Range: at least 0.01 cu ft

Use the selected product label yield.

Result

Whole bags to purchase
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Concrete yield in whole bags (cu ft)
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Whole-bag yield surplus (cu ft)
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Total geometric concrete volume (cu ft)
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Total geometric concrete volume (cu yd)
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Concrete volume per hole (cu ft)
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Estimate scope
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