Post hole concrete calculator
Estimate the volume of cylindrical holes before subtracting any post displacement.
Shopping estimate
Enter your measurements to see an estimate.
How it works
Estimate the volume of cylindrical holes before subtracting any post displacement. Use bag yield to calculate bags.
Worked example
- Diameter
- 30 cm
- Thickness or depth
- 60 cm
- Quantity
- 6
- Waste allowance
- 10 %
- Mixed yield per bag
- 20 L
Result 14 bags
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