ClutchCalcs

Construction

Mortar Mix Calculator

Pick a mortar type (M/S/N/O), enter cubic feet needed, get sand, cement, and lime quantities.

Sand (cu ft)

Portland cement (cu ft)
Hydrated lime (cu ft)
94 lb cement bags

FAQ

Which mortar type for what? +
M for below grade and foundations, S for exterior load bearing, N for above grade general use, O for interior non-load bearing.
Why add lime? +
Lime makes mortar more workable and improves bonding. Pure portland mortar cracks more easily.