How Many Bricks Do You Need? Try This Simple Wall Area Calculator

How Many Bricks Do You Need?

Use this simple wall area calculator to estimate bricks with mortar, openings, and waste allowance.

Units:

Wall Width

Enter width in meters (m)

Wall Height

Enter height in meters (m)

Wall Thickness Single brick (≈115 mm) Double brick (≈230 mm) Triple brick (≈345 mm) Custom: 100 mm

Used for info only (volume) — area is width × height.

Waste Allowance (%)

Add extra to cover breakage & cutting (typ. 5–10%).

Brick Size (Length × Height) Standard modular (190 × 90 mm) Common (230 × 76 mm) Metric (200 × 100 mm) UK standard (215 × 65 mm) Custom size…

Depth isn’t needed for area calculation.

Mortar Joint Thickness 10 mm (typical) 8 mm 12 mm Custom…

Adds to brick length & height to estimate spacing.

Custom Brick Length

Enter length in millimeters (mm)

Custom Brick Height

Enter height in millimeters (mm)

Custom Mortar Joint

Enter joint in millimeters (mm)

Openings (doors/windows)

Subtract areas for cutouts.

Estimated Bricks Needed

Net Wall Area

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Bricks per m² / ft²

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Bricks (no waste)

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Bricks (with waste)

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This is an estimate. Actual counts may vary with pattern, on-site cuts, and local brick sizes.