Concrete Block Calculator

Wall Length (ft)

Wall Height (ft)

Block Length (in)

Block Height (in)

Mortar Gap (in)

Waste (%)

Price per Block ($)

Results

Formula: Blocks = (Wall Area) / (Block Face Area including mortar gap) * (1 + Waste/100). Wall Area = Length * Height. Block Face Area = (Block Length/12 + Mortar Gap/12) * (Block Height/12 + Mortar Gap/12). Mortar estimate assumes 0.3 cubic ft per 100 blocks.