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Calculator
Calculate the concrete volume required for floor slabs, suspended slabs, and ground-level pours. Get accurate m³ estimates for ordering ready mix concrete in Zanzibar.
Instant estimate
Concrete volume
Useful for slab, foundation, and ready mix concrete quotation planning.
Planning estimate only. Zanzibaba can review your BOQ before material supply coordination.
How to Calculate
Volume = Slab Area × Thickness
Multiply the plan area of the slab (length × width) by the slab thickness in metres. Standard residential slabs are typically 100 mm–150 mm thick. Commercial and suspended slabs may require 150–200 mm or more depending on structural design.
Ground slab
12 m × 8 m × 0.12 m = 11.52 m³
Suspended slab
10 m × 6 m × 0.20 m = 12.00 m³
Tip
Add 5–10% waste for uneven ground and formwork tolerances.
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