Brick Wall Calculator | Calculate Bricks Needed

Last updated: 05 Sep 2026 | Author: Brij | Review By: Irshad

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Use our free Brick Wall Calculator to estimate the number of bricks needed for a wall based on wall dimensions, brick size, mortar thickness, wastage, and cost per brick.

Total Wall Area

Wall Length:

Feet

Inches

Wall Height:

Feet

Inches

Total Wall Area:

Number of Brick Needed

Length of the brick:

Height of the brick:

Width of the brick :

Mortar joint thickness :

Cost Per Brick:

Type of wall:

Single

Double

Brick wastage:

Total Bricks needed:

Total Bricks cost:

What is a Brick Wall Calculator?

A Brick Wall Calculator is a tool that helps estimate how many bricks are needed to build a wall based on its dimensions and the size of the bricks. It can also account for mortar joint thickness, brick wastage, wall type, and the cost per brick to provide a more useful material and cost estimate.

Simply enter the wall length and height, brick dimensions, mortar joint thickness, wastage percentage, and cost per brick. The calculator estimates the total wall area, number of bricks required, and total brick cost, helping you plan your materials and budget more efficiently.

How to Calculate the Number of Bricks Needed

To calculate the number of bricks required, you'll need the following information:

Wall Dimensions (length and height)
Brick Dimensions (length, height, and thickness)
Mortar Gap (space between the bricks, if applicable)

To calculate the number of bricks required for a wall, you can use the following formula:

$\text{Number of Bricks} = \frac{\text{Wall Area}}{\text{Brick Area} + \text{Mortar Area}}$

Calculate the Wall Area:

The area of the wall can be calculated by multiplying the length and height of the wall:

$\text{Wall Area} = \text{Wall Length} \times \text{Wall Height}$

Calculate the Area of One Brick:

Next, you need to calculate the area of a single brick (including the mortar gap, if necessary):

$\text{Length with Mortar} = \text{Brick Length} + \text{Mortar Thickness}$

$\text{Height with Mortar} = \text{Brick Height} + \text{Mortar Thickness}$

$\text{Brick Area} = \text{Length with Mortar} \times \text{Height with Mortar}$

Now, you can calculate the total number of bricks required by dividing the total wall area by the area of a single brick:

$\text{Number of Bricks} = \frac{\text{Wall Area}}{\text{Brick Area}}$

Adjust for Wastage:

It is common to add around 5% to 10% extra bricks to account for wastage or breakage. To do this:

$\text{Total Bricks} = \text{Number of Bricks} \times (1 + \text{Wastage Percentage})$

For example, if you estimate 5% wastage

$\text{Total Bricks} = \text{Number of Bricks} \times \text{1.5}$

How to Calculate the Total Cost of Bricks

Once you have the total number of bricks required, the next step is to calculate the total cost. This is straightforward:

$\text{Total Cost} = \text{Total Bricks} \times \text{Cost Per Brick}$

For example, if one brick costs $0.50 and you need 1000 bricks:

$\text{Total Cost} = \text{1000} \times \text{0.50}$

$\text{Total Cost} = \text{500}$

Example Calculation

Let’s break this down with an example:

Wall Dimensions: Length = 20 feet, Height = 10 feet
Brick Dimensions: Length = 8 inches, Height = 4 inches
Mortar Thickness: 0.5 inch
Cost Per Brick: $0.60
Wastage: 5%

Calculate the Wall Area:

$\text{Wall Area} = 20 \times 10 = 200 \, \text{square feet}$

Calculate the Brick Area (convert dimensions to feet for consistency):

$\text{Brick Area} = \left(\frac{8}{12} + \frac{0.5}{12}\right) \times \left(\frac{4}{12} + \frac{0.5}{12}\right)$

$\text{Brick Area} = 0.7292 \, \text{square feet}$

Calculate Number of Bricks:

$\text{Number of Bricks} = \frac{200}{0.7292}$

$\text{Number of Bricks} = 274.36 \, (\approx 275 \, \text{bricks})$

Account for Wastage:

$\text{Total Bricks} = 275 \times 1.05 \\ \text{Total Bricks} = 288.75 (\approx 289 \text{ bricks})$

Calculate Total Cost:

$\text{Total Cost} = 289 \times 0.60 = 173.40$

Conclusion

Estimating the number of bricks and total cost for a wall can be challenging if done manually. With the Brick Wall Calculator, the process becomes much simpler. By following the formulas provided or using the calculator, you can plan your project with confidence, knowing you’ve budgeted for the correct number of bricks and total cost.

Frequently Asked Questions

1. What does the Brick Wall Calculator calculate?

The Brick Wall Calculator estimates the total wall area, number of bricks needed, brick wastage, and total brick cost based on the dimensions and other inputs you provide.

2. What measurements do I need to calculate the number of bricks?

You need the wall length and height, along with the length, height, and width of the brick. You can also enter the mortar joint thickness, wastage percentage, and cost per brick for a more complete material and cost estimate.

3. Does the Brick Wall Calculator include mortar joints?

Yes. The calculator allows you to enter the mortar joint thickness and uses it when estimating the brick area and number of bricks required. The actual amount of mortar needed is not calculated separately.

4. How accurate is the estimated number of bricks?

The result is an estimate based on the dimensions and values entered. Actual brick requirements can vary because of mortar joints, cuts, breakage, wall openings, construction methods, and layout. Adding a reasonable wastage percentage can help account for some material loss.

5. How many bricks do I need for a wall?

The number of bricks depends on the wall's length and height, brick dimensions, mortar joint thickness, wall type, and wastage. Enter these values into the calculator to estimate the number of bricks required for your specific wall.

6. How do I calculate the total cost of bricks?

Multiply the total number of bricks, including the estimated wastage, by the cost per brick.

Formula:

$\text{Total Cost} = \text{Total Bricks} \times \text{Cost Per Brick}$

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