Brick Calculator
Estimate bricks and mortar for any wall, with engineering drawings and a printable PDF report.
Material cost estimate (optional)
How to estimate bricks
Three simple steps to a job-ready brick & mortar count.
Single, double, partition, or custom — choose what matches your project.
Add wall length, height, thickness, and pick a brick preset. Metric and imperial both work.
Total bricks, mortar volume, wastage allowance, and optional cost — broken down clearly.
Brick Calculator — Free & Accurate
Our brick calculator helps builders, contractors, and DIYers count the exact number of bricks and mortar volume needed for any wall. Enter your wall length, height, and thickness, pick a standard brick size (or define your own), and get a complete material list in seconds.
The calculator accounts for mortar joints between bricks, applies the standard 1.33× dry-volume correction for mortar, and lets you add a wastage buffer from 0% to 15% to cover breakages on site. Pick from Modular (190 × 90 × 90 mm), Standard US (8 × 3⅝ × 2¼ in), UK (215 × 102.5 × 65 mm), or Indian Standard (230 × 110 × 75 mm) brick sizes.
Results show total bricks, wall volume, mortar volume, and wastage allowance, with an optional cost estimate in your local currency. Everything runs in your browser — no signup, no data sent to any server.
Why use this calculator?
Built for the site, not the spec sheet — simple, fast, and accurate.
No spreadsheets, no formulas to memorise. Type your sizes, hit calculate, and you're done.
Accounts for mortar joints, dry-volume correction, and breakage wastage — like a site engineer would.
Everything runs in your browser. Your dimensions never leave your device.
Mix metres, feet, inches, and centimetres on the same job — the math converts cleanly.
Add 5%, 10%, or 15% wastage with one tap. Realistic numbers for real sites.
Open it on your phone right at the pour. Fully responsive, no app needed.
Related construction tools
Free, browser-based, and built the same way as the brick calculator.
Frequently asked questions
Pick the size that matches the bricks you'll actually buy. Modular (190 × 90 × 90 mm) is the most common in India, Standard US (8 × 3⅝ × 2¼ in) for North American projects, UK (215 × 102.5 × 65 mm) for British builds. If your supplier sells a different size, use "Custom" and enter the exact dimensions.
Each brick is treated as its given dimensions plus the mortar joint on two faces (so an effective volume of (L + joint) × (W + joint) × H). We divide the wall volume by this effective brick volume, then apply your wastage percentage.
Mortar makes up roughly 25% of a finished brick wall's volume. We compute that share, then multiply by 1.33 (the dry-volume correction for mortar) to give you the wet mortar volume you need to mix. Always order an extra 5–10% to cover site losses.
Single-leaf (half-brick) is one brick wide, typically ~4.5 in / 115 mm — used for partitions and non-load-bearing walls. Double-leaf (one-brick) is ~9 in / 230 mm and used for load-bearing exteriors. Partition is the thinnest option (~3 in / 75 mm) for internal divisions. Use "Custom" if you need a non-standard thickness.
Yes. Every dimension has its own unit picker, so you can enter wall length in feet, height in metres, and thickness in inches on the same calculation. Math converts everything to consistent units internally.