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Brick Calculator

Brickwork is measured in bricks per square meter, which varies by brick size and mortar joint. This calculator estimates the number of bricks needed for a wall based on length, height, and bricks per m².

What Is Brick?

A brick calculator estimates the number of bricks required to build a wall by multiplying wall area by bricks per square meter. Bricks per m² depends on brick dimensions and mortar joint thickness. Rounding up ensures you have enough for cuts and breakage.

Formula: Wall area x Bricks per m²

Example

Formula: Wall area x Bricks per m²
= (5 m x 3 m) x 60 bricks/m²
= 900 bricks

Select your units, then choose result type (rounded or exact) for the brick count.

Tip: Choose result type (rounded or exact) on the right before calculating.

Rounded up helps cover cuts and waste.

Step-by-step calculation

  1. Enter wall length, height, and bricks per area with units.
  2. Select result type (rounded or exact).
  3. Calculate to see bricks needed and steps for that mode.

How this is calculated

Brick quantity is estimated from the wall area divided by the effective face area of one brick including mortar joints (a standard modular brick is about 0.19 m long by 0.09 m high, with a ~10 mm joint). We add 5–10% for cuts and breakage, and subtract openings first.

Sources: IS 1200 (Method of Measurement of Building Works); BS EN 771 (Specification for Masonry Units).

FAQ

How do I calculate bricks by hand?
Multiply wall area (m²) by bricks per m². Round up for waste.
What is the formula for brick count?
Bricks = Wall area x Bricks per m². Example: 15 m² x 60 = 900 bricks.
Standard bricks vs modular bricks
Standard bricks are about 60 per m²; modular bricks are about 50 per m² depending on size.
What units should I use?
Use meters for wall dimensions and bricks per m² for the rate.
Can I use this for a garden wall?
Yes. Enter wall length and height, then select the correct bricks per m² for your brick type.

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