Calculate masonry units and mortar needed
Our brick and block calculator helps you determine the number of masonry units and mortar bags needed for walls, patios, fire pits, and other projects. Whether you're building a garden wall, brick mailbox, or full exterior facade, this tool provides accurate material estimates including waste allowance.
Accurate brick estimation prevents costly project delays from material shortages. The calculator uses 7 bricks per square foot as a standard for modular bricks with 3/8-inch mortar joints. Different brick sizes require different quantities - king-size bricks use about 4.5 per square foot, while standard CMU blocks use 1.125 per square foot.
This calculator is ideal for DIY homeowners planning masonry projects, contractors estimating material costs, and anyone asking "how many bricks do I need for a wall?" or "how much mortar per 1000 bricks?" Always order 5-10% extra to account for cuts, breakage, and future repairs.
Follow these steps to calculate your brick needs: