Brick Calculator
Estimate how many standard bricks a wall needs from its length and height, allowing for 10 mm mortar joints. Enter wall length, wall height and…
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Estimate how many standard bricks a wall needs from its length and height, allowing for 10 mm mortar joints. Enter wall length, wall height and waste allowance to see wall area and bricks needed (50 per m²) when you calculate.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
With the default inputs (wall length = 6 m, wall height = 2.4 m, waste allowance = %5), the results are: wall area 14.40 m²; bricks needed (50 per m²) 756.
Quick reference: wall length vs result
Reference table based on the example values; it is not your calculation result.
| Wall length (m) | Wall area | Bricks needed (50 per m²) |
|---|---|---|
| 3 | 7.20 m² | 378 |
| 6 | 14.40 m² | 756 |
| 12 | 28.80 m² | 1,512 |
| 30 | 72.00 m² | 3,780 |
| 60 | 144.00 m² | 7,560 |
| 120 | 288.00 m² | 15,120 |
Frequently asked questions
What formula does this calculator use?
Wall area = l × h; Bricks needed (50 per m²) = ceil(l × h × 50 × (1+waste ÷ 100)). Variables: l = wall length in m, h = wall height in m, waste = waste allowance in %.
What do I need to enter?
You need wall length (m), wall height (m), waste allowance (%). Results update as you type.
What is an example result?
With the default inputs (wall length = 6 m, wall height = 2.4 m, waste allowance = %5), the results are: wall area 14.40 m²; bricks needed (50 per m²) 756.
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