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Free Concrete Block Calculator

  1. Calculators / 
  2. Concrete block  

Our Concrete Block Calculator helps you accurately estimate the number of concrete blocks and the amount of mortar needed for your construction project. Simply input your wall dimensions, block size, and mortar joint size to get a precise calculation.

This tool accommodates various block sizes, including the most common 8x8x16 inches, and accounts for openings like doors and windows. With detailed outputs and practical tips, our calculator ensures you have everything you need to plan your project efficiently and avoid unnecessary costs. Start your project on the right foot with our easy-to-use Concrete Block Calculator.

Step 1 - Basic details about the project

Tell us a little bit about the project so we can improve our calculations.

Select...
 
Select...
 

Step 2 - Project dimensions

Now tell us about the dimensions of the wall

 
Ft
 
 
Ft
 

Step 3 - Block Dimensions

Select one of the most common block sizes below

8 x 8 x 16 inches (203 x 203 x 406 mm)
 

Step 4 - Mortar Specifications

Enter the mortar thickness and mortar mix ratio and wastage. If you are unsure, you can use the default setting.

10 mm (3/8 inch)
 
1:4 cement to sand
 
 

Our Recommendation

We'll recommend how many cinder blocks, bags of mortar and sand you will need for your project. Complete the form above, and you'll the results here.