Concrete Cylinder Calculator
Calculate concrete cylinder with explicit inputs and a worked example.
Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Quantity estimate only. Check dimensions, waste and product coverage for the actual project.
Example Calculation
- Diameter: 0.4 m
- Height: 2 m
- Columns: 4
- Allowance: 5 %
Four 0.4 m diameter, 2 m high columns need about 1.0556 m³ including 5% allowance.
Frequently asked questions
How do I use this calculator?
Enter diameter, height, columns, allowance. The result updates automatically. Use Reset to restore the example values.
What method does it use?
volume = π × diameter² / 4 × height × count × (1 + allowance/100). Quantity estimate only. Check dimensions, waste and product coverage for the actual project.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.