Free Tools
CMU Block Yield Calculator: Estimate Wall Blocks
Calculate exact concrete masonry unit (CMU) block quantities required for your structural walls and foundations.
Drywall Calculator
- Drywall Sheets / Boards
- Screws & Nails
- Joint Tape
- Joint Compound
Mortar Calculator
- Total CMU Blocks
- Standard Bricks
- 80 lb. Mortar Bags
- 3,000 lb. Bulk Bags
Grout Calculator
- Core Fill Grout
- 6", 8", 12" CMU Blocks
- 80 lb. Bags
- 3,000 lb. Bulk Bags
Stucco Calculator
- Base Coat Stucco
- 3/8", 1/2", 3/4" Thickness
- 80 lb. Bags
- 3,000 lb. Bulk Bags
Rebar Calculator
- Imperial & Metric Sizes
- Weight to Length
- Length to Weight
- Total Standard Bars
CMU Block Calculator
- Standard Block Count
- Includes Waste Factor
- Fast Output
CMU Calculator
Estimated Material Required
Concrete Block Calculator for Masonry Contractors
Ordering the right amount of concrete masonry units (CMU) is critical for keeping masonry jobs on schedule and on budget. Our free CMU block calculator uses the industry standard multiplier (1.125 blocks per square foot) to give you an instant, highly accurate block count.
Because all standard CMU widths (4", 6", 8", 10", 12") share the exact same 8" x 16" nominal face, the total number of blocks you need remains the same regardless of the wall depth. Simply enter your total wall square footage and your preferred waste percentage (usually 5%) to instantly calculate your order quantity.
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