Concrete column volume
Calculate geometric concrete volume for entered rectangular-prism or circular-cylinder columns and an explicit order allowance.
How to use this calculator
How to measure
Measure finished width and depth for a rectangular column, or finished diameter for a circular column, plus the full concrete height. Count only identical elements in one calculation.
Worked example
Four circular columns, 1 m diameter and 2 m high, contain 6.283 m³ net. A 5% allowance adds 0.314 m³, so the order volume is 6.597 m³.
Formula and method
Rectangular: width × depth × height × quantity. Circular: π × (diameter ÷ 2)² × height × quantity. Order volume equals net volume × (1 + allowance ÷ 100).
Assumptions
- Dimensions describe the concrete geometry supplied by the user.
- Quantity is a whole number and allowance is explicit.
Limitations
- No column sizing, loads, reinforcement, concrete class or capacity check.
- Footings, beams, caps and pumping loss are excluded unless measured elsewhere.
FAQ
Does this calculator design the column?
No. It calculates volume only from dimensions you already have.
Should reinforcement be deducted?
No automatic deduction is made; the result follows the entered gross concrete geometry.
Sources
- NIST — SI Units: Volume — primary
A linked manufacturer document is contextual for that product/system only. Current product yield, spacing and density must come from the exact item selected by the user.
Calculation privacy
Calculations run locally. Form inputs and results stay in your browser.
How storage works and how to delete data