Brick Calculator
Calculate the number of bricks and mortar volume needed for a wall, given the brick size and mortar joint thickness.
- Free to use
- Accurate results
- No registration required
- Works on all devices
Enter your wall dimensions and brick size to find how many bricks and how much mortar you need.
A standard 9-inch brick wall is about 0.23m thick.
Your result
1,087
Bricks needed
Mortar volume0.397
AI explanation
Formula
Wall volume ÷ (brick volume + mortar joint on each side), rounded up, plus a wastage allowanceWorked example
3m × 3m wall, 230mm thick, standard bricks, 10mm joints, 5% wastage
| Field | Value |
|---|---|
| Wall length (m) | 3 |
| Wall height (m) | 3 |
| Wall thickness (m) | 0.23 |
| Brick length (mm) | 190 |
| Brick width (mm) | 90 |
| Brick height (mm) | 90 |
| Mortar joint thickness (mm) | 10 |
| Wastage allowance (%) | 5 |
| Bricks needed | 1087 |
| Mortar volume | 0.397 |
Assumptions
- Assumes a standard Indian brick (190×90×90mm) by default, but any brick size can be entered.
- Mortar volume is the wall volume remaining after subtracting the actual (joint-free) volume of all bricks used.
Frequently asked questions
What is the standard brick size in India?
190mm × 90mm × 90mm is the common modular brick size, which with a 10mm mortar joint becomes a 200×100×100mm effective module.
How many bricks are needed per square meter of wall?
It depends on wall thickness and brick size — for a standard 9-inch (230mm) wall with standard bricks, expect roughly 100-110 bricks per square meter, including mortar joints.
Is there a version of this for concrete blocks instead of bricks?
Yes — see the Block Calculator, which uses the same calculation with larger default unit dimensions.