Brick Calculator
Estimate the bricks and mortar bags needed to build a wall. This free online construction & diy calculator runs entirely in your browser — no signup, no data sent anywhere.
Inputs
Results
How It Works (Formula & Method)
A standard modular brick with a 3⁄8″ mortar joint takes about seven bricks per square foot of wall face. Multiply the wall area by that figure and add a waste allowance for breakage and cuts. A rough mortar estimate is one 80 lb bag per 30–35 bricks.
Worked Example
Below is a worked example using the calculator's default values. The same numbers are pre-filled in the form above so you can press Calculate and see the result without typing anything.
Inputs used:
- Wall Area (sq ft): 100
- Bricks per Sq Ft: 7
- Waste Allowance (%): 10
With these inputs, the calculator computes the metrics shown in the Results panel. Change any value and press Calculate again to see how the result responds — the live widget and the chart both update instantly.
Frequently Asked Questions
What does the Brick Calculator compute?
The Brick Calculator takes 3 input values and returns 3 results. Calculate how many bricks and how much mortar you need for a wall from its area, the bricks per square foot, and a waste allowance.
Is my data sent to a server?
No. The Brick Calculator runs entirely in your browser using static JavaScript. Your inputs are never transmitted to CalculatorHive or any third party, and nothing is stored after you close the page.
Is this calculator free to use?
Yes. Every calculator on CalculatorHive is completely free. There is no signup, no paywall, and no usage limit. The site is supported by display advertising and affiliate partnerships, which are clearly labeled.
How accurate is the result?
The math is mathematically exact for the inputs you provide. Real-world accuracy depends on how accurately your inputs reflect the real situation — defaults are typical values, not guarantees.