Mortar Mix Ratio Calculator
Split a planned mortar volume into cement, sand and lime components using adjustable mix parts, dry-volume factor, bag yields and prices.
Default project preview
29.26 ft³
Cement bags
6
Sand volume
0.79 yd³
Lime bags
3
Cement volume
5.32 ft³
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Dry batch volume = finished volume × dry-volume factor × waste factor. Each ingredient volume equals dry batch volume × its parts ÷ total parts.
FAQ
Mortar Mix Ratio Calculator questions
Why is dry volume larger than finished mortar volume?+
Loose dry ingredients contain void space and compact when mixed, so an adjustable dry-volume factor is included.
Do the parts need to total a specific number?+
No. The calculator normalizes any positive relative parts automatically.
Can one mortar ratio be used everywhere?+
No. Required mortar type and proportions depend on masonry, exposure, loading and specification.