Add rectangular and cylindrical concrete volumes, then estimate bags using the yield of your chosen product.
Your input
Outputs are cleared when the input changes.
Result
Enter your data or use the example, then run the tool.
Worked example
The 2 × 3 × 0.1 m example is 0.6 m³, or 0.66 m³ with 10% extra: 55 bags at 0.012 m³ per bag.
Method
Rectangular volume is length × width × height; cylindrical volume is π × radius² × height. Add the volumes and your extra allowance. If bag yield is entered, divide the total by that yield and round up to whole bags.
Limits
Use metres for every dimension and the yield printed on the selected product. This estimates material volume only; it does not assess strength, reinforcement, load capacity or building compliance.
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