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Calculator
Calculate the concrete volume required for circular or rectangular columns. Get accurate m³ estimates to plan column pours and ready mix orders in Zanzibar.
Instant estimate
0.2121 m³ per column
Column type: Circular
Dimensions: 300mm × 3m
Quantity: 4 columns
Recommended grade: C20
Planning estimate only. Confirm dimensions from structural drawings.
Get WhatsApp QuoteHow to Calculate
Round: Volume = π × (Diameter/2)² × Height
Square: Volume = Width × Depth × Height
For circular columns, use π × radius² × height. For rectangular columns, multiply width × depth × height. Sum all column volumes and add 5–10% waste for formwork tolerances.
Round column
300mm dia × 3m = 0.212 m³
Square column
300mm × 300mm × 3m = 0.27 m³
Multiple
Sum individual volumes for total column concrete.
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