Mortar Calculator

Calculate mortar for brick, block, and stone masonry

Pre-Mixed Mortar

Mix Your Own Mortar

Calculate by Unit Count

Mortar Requirements

Pre-Mixed Bags
0
80 lb Bags
0
60 lb Bags
0
Total Volume
cu ft
Coverage Summary
0
Wall Area
sq ft
0
Masonry Units
-
Mortar Type
Coverage estimates:
80 lb bag: ~35 bricks or ~10 CMU blocks (½" joints)
1 cu ft mortar: ~40 modular bricks or ~12 CMU blocks

Mortar Type Reference

Type Strength (psi) Ratio (C:L:S) Best Use
Type M2,500+1 : 1/4 : 3Below grade, foundations
Type S1,8001 : 1/2 : 4.5General purpose, structural
Type N7501 : 1 : 6Above grade, interior
Type O3501 : 2 : 9Non-load bearing, interior
Ratio key: C = Portland Cement : L = Hydrated Lime : S = Sand
Parts by volume. Add water to achieve workable consistency.