Brick Calculator
Estimate the number of bricks, cement, and sand needed for a brick wall.
Bricks Required
How to use the Brick Calculator
- Enter the wall length and height in metres.
- Choose the wall thickness: half brick (10 cm) or full brick (20 cm).
- Click Calculate to see the number of bricks and wall volume.
- Subtract doors and windows from the wall area for a more precise count.
Formula used
The calculator uses a standard brick of 190 × 90 × 90 mm with 20% extra volume for mortar joints, which works out to about 542 bricks per cubic metre of wall.
Worked example
Wall 5 m long, 3 m high
Full brick (20 cm): volume 3.0 m³ → about 1,626 bricks
Half brick (10 cm): volume 1.5 m³ → about 813 bricks
Brick sizes in India
The modular brick specified by BIS is 190 × 90 × 90 mm (200 × 100 × 100 mm with mortar). Many local kilns still make traditional bricks around 230 × 110 × 75 mm, which need roughly 500 bricks per cubic metre. If your supplier's bricks are a different size, the count will change, so confirm the size before ordering.
Tips for accurate results
- Add about 5% extra for breakage during transport and cutting.
- Deduct openings: a standard door is about 2 m² and a window about 1.5 m².
- Soak clay bricks in water before laying so they do not absorb mortar water.
Frequently Asked Questions
About 54 for a half-brick (10 cm) wall and about 108 for a full-brick (20 cm) wall, using modular bricks.
Commonly a 1:6 cement-sand mortar is used; the calculator shows an estimate.
No. AAC blocks are much larger; divide the wall area by the block face area instead.
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Content reviewed by Vinod, Easy Smart Calculator · Last updated October 2026