Concrete Block Calculator
How many blocks for a wall.
Planning a concrete project?
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How to use this calculator
- Enter the wall area.
- See blocks and mortar needed.
- Add rebar/fill for structural walls.
Tired of calling around? Post your project once and let local pros come to you.
Frequently asked questions
- How many concrete blocks per square foot?
- A standard 8×8×16 inch block covers about 1.125 blocks per square foot of wall.
- How much mortar for a block wall?
- Plan about one bag of mortar mix per 12 to 15 standard blocks.