Brick Calculator
Work out how many bricks you need for a wall from its area, including wastage.
Bricks for the wall
A brick wall needs a predictable number of bricks per unit of area, so working out the total is a matter of the wall's area and the brick size, plus the mortar joints between them. This calculates the bricks needed and adds a wastage allowance, so you order enough to finish.
Enter the wall area to see the bricks required.
Joints, bond and breakage
A few real factors shape the count. The mortar joints between bricks take up space, so you fit slightly fewer bricks than the bare area would suggest — a good estimate includes the joint. The bond, or laying pattern, affects how bricks are cut at the ends, and cuts produce waste. And bricks get damaged in delivery. A wastage allowance of around five to ten percent covers it, and having spares from the same batch means a future repair matches, since brick colours vary between runs.
Brick Calculator FAQ
Do the mortar joints affect how many bricks I need?
Yes — the joints take up space, so you fit slightly fewer bricks than the bare wall area suggests. A good estimate allows for them.
How much wastage should I add?
Around five to ten percent for cuts and breakages, plus a few spares from the same batch for future repairs.
Is anything uploaded?
No. The calculation happens in your browser.