Calculate concrete volume, 50kg cement bags, sand, and gravel required for slabs and columns.
Result
Includes standard 1.54 dry volume factor. Add 5% for site wastage during casting.
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Dry Volume = Wet Volume × 1.54 | Component = Dry Vol × Ratio Part / Sum Ratios
30 ft × 20 ft slab, 5 inches thick (M20 mix 1:1.5:3).
Volume: 7.08 m³ (250 cu ft) | Cement: ~58 Bags | Sand: ~4.7 Tonnes | Aggregate: ~9.5 Tonnes.
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