The Brick Calculator is a free tool that helps you calculate brick using the formula Standard brick 0.19 x 0.09 x 0.09 m with mortar; bricks = wall volume / brick volume. Enter your values above and press Calculate to get bricks required, including 5% wastage instantly, with a full step-by-step breakdown.
What is the Brick Calculator?
The brick calculator is a free online tool that helps you calculate brick quickly and accurately. It applies the standard formula Standard brick 0.19 x 0.09 x 0.09 m with mortar; bricks = wall volume / brick volume to the values you enter and, when you press Calculate, displays the result together with a clear, step-by-step explanation of how the answer was reached.
How to use the Brick Calculator
- Enter wall length, height and thickness.
- See the number of bricks needed.
Formula used
The brick calculator is based on this formula:
Standard brick 0.19 x 0.09 x 0.09 m with mortar; bricks = wall volume / brick volumeEach term in the formula corresponds to one of the inputs explained below. The calculator performs the arithmetic for you and shows every step so you can check the working by hand if you wish.
Worked example
Suppose you enter 10m x 3m x 0.23m. The calculator works as follows:
| Inputs | 10m x 3m x 0.23m |
|---|---|
| Working | volume / brick volume |
| Result | about 4140 bricks |
Step-by-step calculation
- Apply the formula:
Standard brick 0.19 x 0.09 x 0.09 m with mortar; bricks = wall volume / brick volume - Substitute your values: volume / brick volume
- Read the result: about 4140 bricks
Inputs explained
- Wall length (m) — the wall length used in the calculation.
- Wall height (m) — the wall height used in the calculation.
- Wall thickness (m) — the wall thickness used in the calculation.
Understanding your result
- Bricks required — the calculated bricks required.
- Including 5% wastage — the calculated including 5% wastage.
Benefits and practical uses
The brick calculator saves time and removes the risk of manual errors when you need to calculate brick. It is useful for students, professionals and anyone who wants a fast, dependable answer. Results update the moment you press Calculate, work on any device, and can be copied or shared in a single click — and because the maths runs in your browser, your figures stay completely private.
Tips for an accurate result
- Keep all related inputs in the same units.
- Use the worked example above to confirm you are entering values in the right places.
- Review the assumptions below so the result fits your situation.
- Press Reset to clear everything and try a different scenario.
Common mistakes to avoid
- Entering values in the wrong unit (mismatched units give wrong answers).
- Leaving a required field empty — the calculator will ask you to fill it in.
- Rounding inputs too early, which can slightly change the result.
Assumptions and limitations
- Standard modular brick; 10 mm mortar; 5% wastage option.
Frequently asked questions
Does this include mortar?
Yes - a 10 mm mortar joint is assumed in the brick size.
How do I use the Brick Calculator?
Enter your values in the fields, then press the Calculate button to see the result. Use Reset to clear the form and start again. Nothing is calculated until you click Calculate.
What formula does the Brick Calculator use?
It uses the standard formula: Standard brick 0.19 x 0.09 x 0.09 m with mortar; bricks = wall volume / brick volume. The full step-by-step working is shown with every result so you can verify it.
What information do I need to use the brick calculator?
You need: wall length, wall height, wall thickness. Sensible example values are pre-filled so you can see how it works.
Is the Brick Calculator free to use?
Yes. Every DigiToolkit calculator is completely free, with no sign-up, no login and no usage limits.
Does the Brick Calculator work on mobile phones?
Yes. The calculator is mobile-first and works on phones, tablets and computers in any modern browser.
Do I need to install an app?
No. The brick calculator runs directly in your web browser — there is nothing to download or install.
Is my data private when I use this calculator?
Yes. All calculations run inside your browser. The numbers you enter are never uploaded to a server or shared with anyone.
How accurate is the Brick Calculator?
It uses the generally accepted formula for brick and computes to several decimal places. Results are accurate for the assumptions listed on this page.
Can I copy or share my result?
Yes. After calculating, use the Copy button to copy the result, or Share to copy the page link.
Why is nothing showing until I press Calculate?
By design, the calculator only computes when you press Calculate, so you can finish entering all your values first. Press Reset any time to clear everything.
What units does the Brick Calculator use?
It works with m. Keep your inputs in consistent units for an accurate result.