Construction Materials Calculator
Concrete, paint and flooring quantities for a job.
Result
Volume2 m³
25kg bags (approx)212
Tonnes (2400kg/m³)4.8
Construction Materials Calculator — FAQs
How much concrete do I need?
L × W × depth in metres = m³. A 5×4m slab at 10cm needs 2 m³ (~4.8 tonnes) — order ready-mix above ~1 m³, bags are painful past that.
How much paint per m²?
~12m² per litre per coat on smooth plaster — textured walls need ~20% more. Always buy for two coats plus touch-ups.
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