Brick Calculator

Brick Calculation

Estimate bricks and mortar for a wall. Units: wall dimensions in meters, brick dimensions in millimeters. Results are approximate and for planning only.

Wall Dimensions

Wall length (m)

Wall height (m)

Openings total area (m²)

Put combined area of doors and windows. Or use the helper below.

Openings helper (add doors and windows)

Opening width (m)

Opening height (m)

#	Width (m)	Height (m)	Area (m²)
Total			0.00	synced to input

Brick and Mortar

Brick size (mm) 190 x 90 x 90 200 x 100 x 60 230 x 110 x 70 Custom size

L x W x H. Choose or set custom below.

Mortar joint thickness (mm)

Typical 8 to 12 mm.

Wastage allowance (%)

Add for breakage and cuts.

Custom length L (mm)

Custom width W (mm)

Custom height H (mm)

Wall thickness

Half-brick (W + joint) One-brick (L + joint) Custom

Mortar volume as % of brickwork

Typical 25 to 35 for brick masonry.

Mortar mix ratio (cement:sand)

Format 1:4, 1:5, 1:6 etc.

Cement bag volume (m³)

Approx 50 kg bag ≈ 0.035 m³.

Actions

Results

Enter values and click Calculate.

How this calculator works

• Net wall area = length × height − openings area.
• Wall volume = net wall area × wall thickness.
• Bricks per m³ = 1 ÷ [(L + joint) × (W + joint) × (H + joint)] using meters.
• Bricks needed = bricks per m³ × wall volume. Wastage added at the end.
• Mortar wet volume ≈ percent of brickwork volume. Dry volume factor typically 1.33.
• Cement volume = dry volume × cement parts ÷ total parts. Sand is the remainder.
• Cement bags = cement volume ÷ bag volume.

These are estimates. Patterns, bonding, workmanship, and site conditions can change the actual quantities.

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