Mortar Calculator Mortar Calculator Estimate cement, sand, and water for masonry works. Mortar Type / Ratio 1:3 1:4 1:5 1:6 Total Wall Volume m³ Number of Bags per Cement (kg per bag) Units Metric (m³, kg) Imperial (ft³, lb) Calculate Reset Export CSV Results Cement Required Number of Cement Bags Sand Required Water Required (litres)