What is Brick Calculator?
Brick Calculator helps you estimate bricks from wall dimensions, mortar joints and a wastage allowance.
The main result is estimated bricks. The formula, example and assumptions below explain how to interpret it.
How to use Brick Calculator
Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.
- Gather net wall area excluding openings (m²), wall thickness (m), brick length (mm), brick width (mm), brick height (mm), mortar joint thickness (mm) and waste allowance (%). Use values from the same situation or reporting period.
- Replace the example net wall area excluding openings with your own value, then complete the other fields. Check the displayed units.
- Select Calculate and read estimated bricks. Change one input and calculate again to compare a second scenario. Reset restores the original example.
- Enter net wall area excluding openings in m², at least 0. Decimals are accepted.
- Enter wall thickness in m, at least 0.001. Decimals are accepted.
- Enter brick length in mm, at least 1. Decimals are accepted.
- Enter brick width in mm, at least 1. Decimals are accepted.
- Enter brick height in mm, at least 1. Decimals are accepted.
- Enter mortar joint thickness in mm, at least 0. Decimals are accepted.
- Enter waste allowance in %, at least 0 and at most 100. Decimals are accepted.
Brick Calculator: a worked example
With the inputs below, the result is 2,415 bricks (estimated bricks). Follow the example, then replace these illustrative values with your own.
| Input or output | Example value |
|---|---|
| Net wall area excluding openings (m²) | 20 m² |
| Wall thickness (m) | 0.23 m |
| Brick length (mm) | 190 mm |
| Brick width (mm) | 90 mm |
| Brick height (mm) | 90 mm |
| Mortar joint thickness (mm) | 10 mm |
| Waste allowance (%) | 5 % |
| Estimated bricks | 2,415 bricks |
Understanding the Brick result
The main output is estimated bricks, expressed in bricks. It applies to the inputs and operation you selected.
Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.
Brick Calculator: assumptions and common mistakes
A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.
- Keep dimensions in the displayed units and distinguish usable area from built-up area. Material estimates need a suitable allowance for site conditions and waste.
For wider guidance, visit Bureau of Indian Standards. The formula and scope of this specific tool are stated on this page.
