Fence post concrete calculator
Estimate concrete around circular fence posts.
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Your measurements
Enter your project values. Your estimate updates as you type.
View your estimateExample values are a starting point. Check product yields and specifications before ordering.
YOUR ESTIMATE
Concrete required
0.415m³
Net concrete volume0.377 m³
Concrete per hole0.038 m³
Calculated from your measurements.
How it's calculated
Concrete = π × (hole diameter² − post diameter²) ÷ 4 × depth × quantity. Apply waste.
Calculations use consistent units for your selected measurements. The waste allowance is applied once to the measured requirement. Whole purchase quantities are rounded up.
What this estimate includes
The post must be circular and extend through the filled depth. Hole sizes are inputs, not design recommendations.
QUIKRETE product yieldsQuantity and arithmetic estimates only. Use project specifications for installation and design requirements.
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