Concrete Calculator

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Concrete volume and cement bags for slabs, footings and columns

L T W L H W D H S H D d H D W H F L U R P W t
25 kg cement bags – bags
Net concrete volume –
Volume incl. 5% safety factor –
Assumption: a 1:2:3 cement-sand-aggregate mix needs roughly 13 × 25 kg cement bags per m³, and a 1.05 wet-volume safety factor is applied. Adjust the bag rate to match your actual mix design.
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