Construction & Materials
Brick Calculator
Brick: brick Calculator divides the wall area by the area one brick (plus mortar joint) covers, then applies the waste % you enter. Worked through below with real figures, and the calculator repeats the working on your own inputs — free, on-device, instant.
Brick Calculator helps you estimate bricks for a wall. Enter your wall length, wall height, brick type and waste % and it returns the number of bricks instantly, right in your browser with nothing uploaded.
Estimate only — not engineering or contractor advice. Quantities depend on the area, the product size and the waste % you enter, plus cuts, layout and openings, so confirm sizes with your supplier.
About this calculator
Brick is easiest to get wrong in the setup, not the arithmetic. Brick Calculator divides the wall area by the area one brick (plus mortar joint) covers, then applies the waste % you enter. It matters before you buy: a clean volume estimate plus a waste allowance beats a guess every time. The worked example on this page (For a half-brick (115 mm) wall of 10 m × 3 m = 30 m² using modular bricks (190 × 90 × 90 mm) with 10 mm mortar joints, each brick face plus joint covers about 0.02 m², giving roughly 50 bricks per m² → about 1,500 bricks , plus ~5% for breakage ≈ 1,575.) shows the full substitution; the calculator above runs the same working on your own numbers, in your browser, with nothing uploaded.
How to use
- Enter the wall length in feet.
- Enter the wall height in feet.
- Pick a brick type and set a waste percentage.
- Tap Calculate to see the brick count and wall area.
Why use the Brick Calculator
Instant
Every quantity is worked out on your device the moment you tap Calculate.
Private
The numbers you enter stay in your browser and are never uploaded or saved.
Free
No signup, no paywall, and no ads placed inside your results.
Works offline
Once the page has loaded it keeps working on a weak or dropped connection.
Mobile-first
Laid out for phones and tablets on site just as much as for desktops.
Planning estimates
Results are simplified planning estimates; real material needs vary by product size, waste, layout, local codes, and site conditions, so confirm before you buy or build.
Common uses
Use it when allowing for the mortar joint
Use it when adding a waste margin to the count
Use it when estimating bricks for a wall
Use it for contractor and client quotes
Use it when budgeting a brickwork job
Use it for a wall length and height in bricks
Technical notes
Brick Calculator divides the wall area by the area one brick (plus mortar joint) covers, then applies the waste % you enter.
Includes the waste % you enter; confirm coverage rates and material sizes with your supplier before ordering.
Results are rounded for display; the underlying calculation keeps full precision.
Worked example
For a half-brick (115 mm) wall of 10 m × 3 m = 30 m² using modular bricks (190 × 90 × 90 mm) with 10 mm mortar joints, each brick face plus joint covers about 0.02 m², giving roughly 50 bricks per m² → about 1,500 bricks, plus ~5% for breakage ≈ 1,575. Brick sizes, wall thickness and mortar joints vary by region, so treat this as an estimate.
FAQ
How many bricks per square foot are assumed?
A modular brick is about 7 per square foot, a queen about 6, and a standard about 6.75, including a mortar joint.
Does the Brick Calculator send my wall size anywhere?
No. The Brick Calculator runs in your browser and the wall figures you enter are never uploaded.
Why add a waste percentage?
Cuts at corners and openings and the odd breakage mean a few extra bricks, so a small waste percentage is sensible.
Is this for a single-wythe wall?
Yes. The count is for one brick thickness; double the result roughly for a two-wythe wall.