ClarityHow to use this tool
- Enter gross solid wall volume, number of bricks, brick length, brick width, brick height, waste allowance.
- Select Calculate to view the result.
- Check the method and assumptions below before using the result.
The method, explained
Wet mortar volume = wall volume − brick count × individual brick volume, then apply allowance.
Using gross solid wall volume = 1 m³, number of bricks = 500, brick length = 200 mm, brick width = 100 mm, brick height = 60 mm, waste allowance = 10 %, the result is 0.44 m³. Change these example inputs to match your task; use the method above to check each step.
Understanding your result
Solid-volume estimate. Exclude cavities and openings from wall volume. This does not specify cement–sand mix or dry material quantities.
What to keep in mind
Solid-volume estimate. Exclude cavities and openings from wall volume. This does not specify cement–sand mix or dry material quantities. A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.
Common questions
How do I use this brick mortar volume calculator?
Estimate mortar volume by subtracting brick volume from a solid wall volume. Enter gross solid wall volume in m³, number of bricks, brick length in mm, brick width in mm, brick height in mm, waste allowance in %. The starting example is editable; use values for the same system or project.
Which assumptions affect this result?
Solid-volume estimate. Exclude cavities and openings from wall volume. This does not specify cement–sand mix or dry material quantities.
Methodology maintained by ClarityKit. How these tools are built and checked.