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Concrete Block Calculator

Perform quick & accurate conversions and calculations

ft
in
ft
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Total Area (ft²):

0

Total Block:

0

Total Cost:

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How to calculate the number of concrete blocks you need?

To calculate the number of concrete blocks you'll need for a project (like building a wall), follow these steps:

1. Determine the area of the wall
First, find out the total surface area that will be covered by the blocks. Use the formula:
  • Height: The height of the wall in feet or meters.
  • Length: The length of the wall in feet or meters.

Area = Height × Length

Concrete Block Calculator
2. Determine the size of the concrete blocks

Concrete blocks come in different sizes. A common standard block size is 16 inches long by 8 inches high (16" x 8"). However, some blocks may be different sizes, so check the specific dimensions for your project.

If the block size is 16" x 8" (or 1.33' x 0.67'), the area of one block is:

Area of 1 block = 1.33′ × 0.67′ = 0.89 ft²

Concrete Block Image
3. Calculate the number of blocks

Now, divide the total area of the wall by the area of one block:

Number of blocks =
Area of 1 block
Area of the wall​
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