Brick Calculator
Estimate bricks required from wall area and bricks per square foot.
This brick calculator estimates the total number of bricks needed for a wall, based on the wall's area and the number of bricks required per square foot for the chosen brick size and mortar joint thickness, plus a waste allowance.
Enter your wall area and bricks per square foot, and the calculator returns the total bricks needed.
Worked Calculation Examples
| Scenario | Result | Calculation Step |
|---|---|---|
| 200 sq ft wall, 6.75 bricks/sq ft, 10% waste | 1,485 bricks | Bricks = 200 × 6.75 × 1.10 = 1,485. |
| 150 sq ft wall, 7 bricks/sq ft, 5% waste | 1,103 bricks | Bricks = 150 × 7 × 1.05 = 1,102.5, rounded up to 1,103. |
Bricks Per Square Foot
The number of bricks per square foot depends on brick size and mortar joint thickness - standard modular bricks with typical 3/8-inch mortar joints commonly work out to around 6.75-7 bricks per square foot, though this varies with different brick dimensions and joint widths.
Why Waste Allowance Matters for Brick Projects
Bricks break during handling and cutting, and irregular wall shapes or corners require partial bricks that create additional waste - adding a 5-10% buffer to the raw calculated brick count helps avoid running short partway through a project.
How to Use the Brick Calculator
- Open the Brick Calculator and enter the values requested in the input fields.
- Check the units, percentages, dates, or time periods before reading the answer.
- Review the instant result and adjust any value to compare another scenario.
- Use the formula, example, and FAQs below to understand how the brick calculator works.
Frequently Asked Questions
How many bricks do I need per square foot of wall?
It depends on brick size and mortar joint thickness, but standard modular bricks with typical mortar joints commonly work out to around 6.75-7 bricks per square foot.
How do you calculate total bricks needed for a wall?
Multiply the wall's total area in square feet by the bricks-per-square-foot figure for your specific brick size, then add a waste allowance of about 5-10%.
Why do brick calculations need a waste allowance?
Bricks break during cutting and handling, and corners or edges often require partial bricks, both of which create waste beyond what a pure area-based calculation accounts for.
How do I use this brick calculator?
Enter the known values, review the units or settings, and the calculator updates the result instantly. The formula and example on this page show how the answer is produced.
What does the Brick Calculator calculate?
Estimate bricks required from wall area and bricks per square foot. It is designed for fast browser-based calculations without sign-up, downloads, or manual spreadsheet setup.
What formula does this brick use?
The formula is: bricks = wall area * bricks per sq ft * (1 + waste). Fired clay brick construction dates back roughly 5,000 years to ancient Mesopotamia, though the modern standardized 'modular brick' size used in this calculation's bricks-per-square-foot figure was formalized by the US brick industry in the early-to-mid 20th century specifically to work cleanly with standard mortar joint widths and simplify wall-area-to-brick-count estimation.
Related Calculators
Paver Calculator
Estimate patio pavers from area, paver dimensions, and waste.
Concrete Calculator
Estimate concrete volume in cubic yards, cubic feet, and 60lb/80lb bags.
Drywall Calculator
Estimate drywall sheet count from wall area and sheet size.
Roofing Calculator
Estimate roofing square footage, shingles bundles, and pitch slope.
Paint Calculator
Calculate paint gallons required for wall square footage.
Flooring & Square Footage Calculator
Estimate tile, hardwood, or carpet square footage and cost.
Last updated: September 27, 2026.