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Free Brick Calculator

Find how many bricks you need for a wall, accounting for mortar joints and waste.

100% Free No Signup Works on all devices

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Key Features

Instant Calculation

Get accurate results in real time with our optimized algorithm.

Mobile Friendly

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100% Free

No hidden costs. This tool is completely free forever.

Estimating brick quantities means accounting for more than just brick size — the mortar joint between bricks adds real area to each brick's effective footprint, and skipping this step leads to under-ordering.

This calculator takes your wall area, brick dimensions, and mortar joint thickness, and tells you how many bricks to order.

How it works

Enter your wall area, brick length and height, mortar joint thickness, and a waste allowance. The tool adds the joint thickness to each brick dimension to find its effective coverage, then divides your wall area (plus waste) by that coverage.

  1. Enter wall area (sq ft).
  2. Enter brick length (in).
  3. Enter brick height (in).
  4. Enter mortar joint (in).
  5. Enter waste allowance (%).
  6. Click Calculate to see your results.

Examples

A 200 sq ft wall

A 200 sq ft wall using standard 8"×2.25" bricks with a 3/8" mortar joint and 10% waste needs about 1,441 bricks.

Who should use it

  • Estimating material needs before a brick veneer or wall project.
  • Comparing costs between different brick sizes.

Industry applications

  • Residential and commercial construction
  • Masonry contracting

Advantages

  • Accounts for mortar joint thickness, not just raw brick size.
  • Includes a waste allowance for a more realistic order quantity.

Limitations

  • Assumes a standard running-bond layout — decorative or complex brick patterns may need a different calculation.

Common mistakes to avoid

  • Using a brick's raw dimensions instead of its effective coverage (brick size plus mortar joint) when estimating quantity.
  • Not adding a waste allowance for cuts at corners, openings, and wall ends.

Best practices

  • Order a few extra bricks beyond the calculated amount from the same batch, in case of breakage or future repairs — brick color can vary between production runs.

Tips

  • If ordering from a supplier, ask whether bricks are sold individually or by the pallet/cube — you may need to round up to a full unit.

Frequently asked questions

Yes, with no signup and no limit on how many calculations you run.
Each brick effectively "takes up" its own size plus half a joint on each side once mortared in place, so ignoring the joint thickness would underestimate how much wall area each brick actually covers, leading to over-ordering (not under-ordering, since real coverage per brick is slightly less than raw brick size).
3/8 inch (0.375") is the most common standard mortar joint thickness for brickwork, though this can vary by design or regional convention.

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