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Brick Wall Calculator

Measure the wall, add its doors and windows, and enter the brick and joint size. You will see both the calculated count and the quantity to buy.

No layout needed

Calculation details

Update the example values below. Results update as you type.

01Measurements
ft
ft
in
ft²
02Material detailsUnit sizes, mix ratios and allowances.
in
in
in
in
%
03Rates (optional)
INR
INR/ft³

How the quantities are calculated

Follow the method, check the example and review the assumptions.

The method

From measurements to materials

Net wall volume ÷ effective brick volume including joints gives the theoretical brick count. Wastage is added before rounding up.

An example

Put the numbers in context

A 4 m × 3 m wall, 200 mm thick, with 2 m² of openings has 2 m³ net volume. A 200 × 100 × 100 mm effective module gives 1,000 bricks before wastage.

This illustrates the method; your inputs determine your result.

Assumptions to check

  • Each wall keeps its own dimensions and openings.
  • For linked surface work, opening faces use the thickness of their own wall.
  • The entered joint thickness applies in each unit direction.

Limits of this calculation

  • Bond pattern, cut bricks, piers and site breakage may require a project-specific allowance.

Common questions

Are doors and windows deducted?

Yes. Add each opening to its actual wall. It is deducted once from that wall only.

Does the calculator include mortar?

Joint thickness affects the brick count, but cement and sand are calculated separately in the brickwork mortar module.

Product references for India

Specifications, pack sizes and sources to check before buying.View detailsHide details
Masonry units

Fly ash brick size reference

Modular size example
190 × 90 × 90 mm
Reference
BIS product manual for IS 12894
Specification & price notes

The manual lists several sizes. Measure the actual supplied brick and enter the joint thickness separately; this size is not a specification for every wall.

Source checked 30 Oct 2026. Enter your supplier’s price separately.

BIS product manual (PDF)

These references do not set your calculator inputs or prices. Confirm the exact product, specification and delivered quote before ordering.