Plaster and Render Calculator
Calculate render or plaster volume and split it with a configurable cement, lime, and sand ratio.
Render and plaster volume
The geometric basis multiplies area by thickness. Correctly converting millimeters or inches prevents large volume errors.
Volume = area × thickness
Optional volume ratio
When you know a ratio, you can split volume including allowance among cement, lime, and sand. A 1:1:6 ratio totals eight parts and assigns each component its fraction.
The ratio is fully editable and is not a universal mix or structural recommendation.
Frequently asked questions
How much material is needed per square meter?
It depends mainly on thickness and mix. There is no single rate for every render or plaster system.
Can it calculate cement, lime, and sand?
Yes. Enable the optional ratio and enter the proportions specified for your mix.
Is an allowance required?
No. Leave it empty or enter 0%.
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