Mortar Calculator
Uses a common rule of thumb for bed-joint and head-joint mortar per square foot of wall area. Useful for ordering materials, not for structural grout specs.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Measure the net wall area (opening subtracted if you like). Add waste for partial units and spillage.
What the math is doing
Mortar cubic feet ≈ wall area in square feet × 0.043. Converted to cubic meters for display.
Frequently asked questions
What about grout cells?
Cellular grout fills CMU cores and is calculated separately from face mortar.
Does stone veneer match?
Stone mortar beds differ; treat this as a rough check only.
Pre-mixed vs sand/cement?
Convert wet volume to bag counts using your product’s yield.
Why 0.043?
It is a commonly cited planning factor; jobsite technique changes actual use.