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SARZAMEEN BuyRentAgentsBlog

Plaster Calculator

Enter the area and plaster thickness to get the cement bags and sand needed for your mortar mix.

Enter your details

1:4 is typical for walls, 1:3 for waterproof or exterior work.
%
Allowance for spillage, cutting and breakage.

Results

Enter your values and press Calculate. Results will appear here and update as you change inputs.

    Results are estimates, not quotations. Confirm quantities and prices with your contractor or supplier.

    How this calculator works

    • Dry mortar volume = wet volume × 1.33.
    • Surface unevenness can raise real thickness well above the nominal figure.

    Frequently asked questions

    About 12 mm (½ inch) is typical internally; external plaster is often 15 to 20 mm.

    Poor masonry can need 30% or more extra mortar. Increase wastage accordingly.