Bricks Calculator
Estimate brick numbers for a wall, with a waste allowance.
Quick answer: enter your details below and click Count Bricks — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Measure the wall area in square metres.
- Enter the bricks per square metre for your brick and mortar joint.
- Click Count Bricks.
About this tool
Enter the wall area and the bricks needed per square metre, and the tool multiplies them, adds a 10 percent allowance for breakage and cuts, and rounds up. The allowance is shown separately so the exact figure stays visible.
Frequently asked questions
Do I subtract windows and doors?
For large openings, yes, subtract their area first; for small ones, keeping them in adds a useful margin.
What about a double-skin wall?
Double the single-skin figure, since two leaves of brickwork need twice the bricks.