Brick Calculator India
Work out how many bricks a wall needs, counting the mortar joint and some breakage.
Brick Calculator
Bricks you need
2,230
- Wall volume (cu ft)150.00
- Mortar volume (cu ft)15.00
- Bricks will cost about₹15,610.00
Works out in your browser. Nothing you type is sent anywhere.
In short: Brick Calculator
A wall of this size is 150.00 cubic feet, which takes 2,230 bricks once breakage is allowed for, and about 15.00 cubic feet of mortar. At the price entered the bricks come to roughly ₹15,610.00. The joint is counted with the brick, not separately.
What is Brick?
Brick quantity is the volume of the wall divided by the volume one brick occupies once its mortar joint is counted with it.
How is Brick calculated?
Work out the wall's volume from its length, height and thickness. Divide by the volume one brick takes up including its mortar joint, which for a standard Indian modular brick is a shade larger than the brick itself, then add the breakage allowance.
- Nthe number of bricks
- V_wallthe volume of the wall
- V_brickthe volume one brick takes up with its joint
- wthe breakage allowance, as a decimal
A worked example
| Wall length (ft) | 20 |
|---|---|
| Wall height (ft) | 10 |
| Wall thickness | 9 inch (full brick) |
| Share taken by mortar (%) | 10% |
| Extra for breakage (%) | 5% |
| Price for 1,000 bricks | ₹7,000 |
| Result | |
| Bricks you need | 2,230 |
| Wall volume (cu ft) | 150.00 |
| Mortar volume (cu ft) | 15.00 |
| Bricks will cost about | ₹15,610.00 |
Every figure in this table is produced by the same calculation the tool above runs.
How to use this brick calculator
- Enter the wall's length and height.
- Choose the thickness, which on most Indian walls is a full brick or a half.
- Leave the mortar and breakage allowances unless your mason advises otherwise.
- Enter the price for a thousand bricks to see the cost.
Questions people ask
What size is a standard Indian brick?
The modular size set by the Bureau of Indian Standards is one hundred and ninety by ninety by ninety millimetres, and it is laid as two hundred by one hundred by one hundred once the mortar joint is counted. That is the figure this tool uses. Locally made bricks vary, so measure a few if you can.
How does this compare with the rule of thumb?
The common site figure is five hundred bricks to a cubic metre of brickwork, and the arithmetic here lands in the same place. It is a useful cross-check on the answer. A large difference usually means the thickness was entered wrongly.
What is the difference between a nine-inch and a four-and-a-half-inch wall?
A nine-inch wall is a full brick thick and can carry load; a four-and-a-half-inch wall is a half brick and is used for partitions. The thicker wall uses roughly twice as many bricks for the same face area. Choose the one your drawing specifies.
Does this include the mortar quantity?
It shows the mortar volume so you can order cement and sand, but it does not work out the cement and sand split, because that depends on the mix your mason uses. Ask for the mix ratio and apply it to the volume shown. The ratio tool can share it out.
Accuracy and sources
Where the figures come from
Checked by the Daytoolz team on 16 October 2026. How we check our tools.