CMU Block Calculator
Same as block wall, lists more sizes.
How to use CMU Block Calculator
- Enter the wall dimensions and choose your concrete masonry unit (CMU) block size.
- The tool calculates how many blocks you'll need, listing options across common CMU sizes.
About this tool
CMU Block Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Trade & Construction Calculators. Browse more Trade & Construction Calculators tools.