Brick Calculator

Enter your wall dimensions and brick size to instantly calculate the number of bricks needed. Accounts for mortar joints and waste with this free online brick calculator.

Frequently Asked Questions

How is the number of bricks calculated?
Divide the total wall area by the area covered by one brick (including mortar joints). A waste allowance of 5-10% is typically added for breakage and cutting.
What is the standard brick size?
Standard brick dimensions vary by region. A common modular brick is 194×92×57mm (7⅝×3⅝×2¼ inches) with a 10mm (⅜ inch) mortar joint, requiring about 50 bricks per square meter.
How do I account for windows and doors?
Subtract the area of windows, doors, and other openings from the total wall area before calculating. This calculator allows you to enter opening areas separately.
Updated 2026 pricing