Free · Concrete & masonry
Brick Quantity & Mortar Materials Calculator
Estimate bricks and mortar materials using wall, joint and mix inputs.
- Formula & worked example
- Private in your browser
- No signup
Your calculation
Enter enough known values to calculate the blanks.
Use one currency for your figures. Mixed-currency conversions use rates captured October 5, 2026, rather than live exchange rates.
How to use this calculator
- Enter the values you know in the units shown. Leave unknown values blank.
- Results update automatically as you type. Edit a result to calculate another value, or lock a value to keep it fixed.
- Reset restores the starting fields. A worked example appears below.
Private by default
Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.
Formula and method
Brick dimensions plus mortar joints determine the wall area covered by each brick. Wall type, allowance and mortar mix affect the material quantities shown.
Bricks = ceiling(wall area ÷ brick face area including joints × wall-type multiplier); total bricks = ceiling(bricks × (1 + wastage ÷ 100)). Mortar quantities follow the selected cement-to-sand ratio.
Worked example
Enter these known values and leave the other values blank.
- Type of wall
- Single
- Wall length (L)
- 5 m
- Wall height (H)
- 3 m
- Brick length (l)
- 200 mm
- Brick height (h)
- 100 mm
- Brick width (w)
- 100 mm
- Mortar joint thickness (t)
- 10 mm
- Brick wastage
- 5 %
- Dry volume to wet volume ratio
- 1.52 :1
- Mortar wastage
- 10 %
- Mortar ratio
- 1:6 (for interior plaster)
- Cement density
- 1440 kg/m³
- Bag size
- 50 kg
- Wall area
- 15 m²
- Bricks needed
- 650 bricks
- Total bricks needed
- 683 bricks
Assumptions and limitations
- Inputs must satisfy the validation rules. Editing a result can recalculate an earlier input; lock values you want to keep fixed.
- Currency conversions use the captured source rates from October 5, 2026; they are not live exchange rates.
Common questions
What does this brick calculation tell me?
Brick dimensions plus mortar joints determine the wall area covered by each brick. Wall type, allowance and mortar mix affect the material quantities shown.
Can I calculate a different unknown?
Yes. Clear that field and enter the other known values. The calculator uses the available inverse equations.
References
The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.
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