Block Calculator

Use our online block calculator to find the number of concrete blocks required for building an area. It is mainly used as a building material in the construction of a wall. Usually, standard rectangular size is used in the construction of buildings. It is also referred as concrete masonry unit. Select the block size and enter the length and width in this concrete block calculator to calculate the requirement of the total number of concrete blocks.

Concrete Block Calculator

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Number Of Blocks = (Length × Width) / Block Size


Calculate how many concrete blocks are needed for your project having a width and length of 5 ft and 7 ft.


Number of Concrete Blocks = (5 x 7) / 16″x 8″
= 39.375

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