Plaster Area per Cement Bag Calculator
Calculate the approximate square meters of wall or ceiling plaster produced from one cement bag using cement:sand ratios, plaster thickness, and practical waste allowances.
Plaster coverage calculator
m² of plaster per 1 bag of cement
Estimate how many square meters of plaster can be produced from one cement bag using the site approximation: after hydration, total plaster volume is approximately equal to the sand volume.
Practical plaster area
0.00
m² per cement bag
Gross theoretical area
0.00 m²
Waste allowance
10%
Cement volume
0.000 m³
Approx. plaster volume
0.000 m³
Rule used:
1 bucket of sand ≈ 1 bucket of finished plaster after hydration and shrinkage.
Calculation method
Cement volume = cement bag weight ÷ loose cement bulk density. Approximate plaster volume = cement volume × sand ratio. Practical area = plaster volume ÷ plaster thickness ÷ waste factor.