What is the Brick Calculator?
Estimate how many bricks and mortar bags you need for a wall. Order the right amount the first time. These construction and DIY calculators estimate materials for common home projects and include sensible waste allowances.
How to use the Brick Calculator
- Enter your wall length, your wall height, your bricks per ft², your waste.
- Results update automatically as you type; you can also press Calculate.
- Read the output: bricks needed, mortar bags (≈ 1 per 35 bricks).
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With wall length = 20 ft, wall height = 6 ft, bricks per ft² = 6.75, waste = 5 %, the Brick Calculator returns bricks needed: 851; mortar bags (≈ 1 per 35 bricks): 25.
Tips for better results
- Add 5–15% for waste, cuts and breakage depending on the material.
- Measure twice and round up when buying — returns are easier than second trips.
- Coverage figures vary by product, so check the label or spec sheet.
⚠️ Material estimates are approximate. Follow local building codes and manufacturer instructions.
Frequently asked questions
What does the Brick Calculator do?
Estimate how many bricks and mortar bags you need for a wall.
How is it calculated?
The Brick Calculator uses this method: Bricks = Wall area × bricks per ft² × (1 + waste); modular brick ≈ 6.75/ft².
Can you show an example?
With wall length = 20 ft, wall height = 6 ft, bricks per ft² = 6.75, waste = 5 %, the Brick Calculator returns bricks needed: 851; mortar bags (≈ 1 per 35 bricks): 25.
Is the Brick Calculator accurate?
It uses standard published formulas and is tested against known values, but results are estimates for guidance. Material estimates are approximate. Follow local building codes and manufacturer instructions.
Is this tool free and private?
Yes — the Brick Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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