materials
Mortar Quantity Calculator
Estimate wet mortar, dry volume, cement, and sand from area and thickness.
Adjusted volume
0.479 m³
Base volume
0.36 m³
Allowance
0.119 m³
How this works
Wet mortar = area × thickness; dry ingredients include the selected volume allowance.
Worked example
Thirty square metres at 12 mm uses 0.36 m³ wet mortar before dry-volume allowance.
FAQ
What is the Mortar Quantity Calculator used for?
Estimate wet mortar, dry volume, cement, and sand from area and thickness. It is intended for quick planning, checking, and everyday decisions.
Can I use the result for a final contract or design?
Use it as a planning estimate. Mix proportions still need to be selected for the intended masonry or finish.
How can I improve the accuracy?
Use measured quantities, current supplier or lender rates, the correct units, and compare the result with drawings, invoices, or professional advice where the decision is safety-critical.