Brick & Block Calculator

Calculate bricks, blocks, and mortar needed for walls and structures

Unit Type

Select brick or block

Standard dimensions:

Brick: 215 × 102.5 × 65mm (~60 per m²)

Wall Dimensions

Enter wall size and openings

m

In meters

m

In meters

m²

Doors, windows, vents combined

Material Specifications

Units per m² and mortar coverage

units/m²

Bricks: 60, Blocks: 10

L/m²

Bricks: 12L/m², Blocks: 7L/m²

%

10-15% typical for breakage and cutting

Results

Net Wall Area

28m²

Bricks Needed

🧱1849

Mortar Required

🏗️336litres

🧪 Mortar Mix

Standard mortar mix is 1:3 (cement:sand). For each litre of mortar, use approximately 300ml cement to 900ml sand.

How to Use

  1. 1Select brick or block as your masonry unit
  2. 2Enter wall length and height in meters
  3. 3Subtract door and window opening areas
  4. 4Set units per m² and mortar coverage
  5. 5Account for 10-15% waste (breakage, cutting)
  6. 6Calculate total material requirements

Example

10m × 3m brick wall with 2 m² openings

Inputs:

Wall: 10m × 3m (30 m² net after openings)\nUnit type: Brick\nWaste: 10%

Results:

Bricks: 1980\nMortar: 336 litres

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