The Brick Calculator tells you how many bricks you need for a wall, accounting for mortar joints and waste. Simply fill in the fields above and click Calculate to get an instant result.
This calculator is part of Calculate Wiki’s Construction Calculators collection.
What You’ll Need
- Wall Length and Wall Height
- Brick Length and Brick Height
- Mortar Joint Width
- Waste Allowance
Formula Used
Bricks per sq ft = 144 ÷ ((Brick length + Joint) × (Brick height + Joint))
Total bricks = Wall area × Bricks per sq ft × (1 + Waste%)
Example Calculation
Using example inputs — Length = 20 ft; Height = 8 ft; Brick = 8 in × 2.25 in; Joint = 0.375 in; Waste = 10% — the Brick Calculator returns:
| Value | Result |
|---|---|
| Wall area | 160 sq ft |
| Bricks per sq ft | 6.55 |
| Bricks needed | 1153 |
1153 bricks needed.
Helpful Information
Results from the Brick Calculator are estimates based on standard formulas used in the construction calculators field. Brick sizes vary by region and manufacturer — check your specific brick’s dimensions.