# Brick Calculator Calculate how many bricks you need for walls, patios, and walkways. Accounts for mortar joints and waste. Includes mortar bag estimate. ## What this calculates Laying brick is a true art form. Whether you want to build a classic garden wall, a sturdy new patio, or a beautiful backyard fire pit, masonry requires patience and skill. However, before you can mix a single batch of mortar, you have to figure out exactly how many materials you need. Guessing your brick count is a fast track to serious frustration. We built our free Brick Calculator to make project planning completely effortless. Let us look at why accurate estimates matter and how you can use this friendly tool to make your next masonry project a complete success. ## Inputs - **Wall/Area Length** (ft) — min 0 - **Wall Height / Area Width** (ft) — min 0 - **Brick Length** (in) — min 1, max 16 — Standard modular brick: 7-5/8 inches (8" nominal) - **Brick Height** (in) — min 1, max 6 — Standard modular brick: 2-1/4 inches - **Mortar Joint Width** (in) — min 0, max 1 — Standard: 3/8 inch (10 mm). Range: 1/4 to 1/2 inch (6 to 13 mm). - **Waste Factor** (%) — min 0, max 20 — 5% for running bond, 10-15% for complex patterns - **Price Per Brick** ($) — min 0 ## Outputs - **Wall/Area Size** (ft²) - **Bricks Per ft²** - **Bricks Needed (exact)** - **Bricks to Order** — Including waste factor - **Mortar Bags (80-lb)** — Type S or N mortar mix - **Estimated Brick Cost** — formatted as currency ## Details Why Accurate Material Estimates Matter Bricks are incredibly heavy and buying them is a major investment. When you find your rhythm with a trowel, the last thing you want to do is stop working because you ran out of materials. If you underestimate your project, your work grinds to a sudden halt. You have to pause everything, rush to the supplier, and hope they still have the exact same color batch in stock. Mismatched bricks can easily ruin the look of your new wall. On the other hand, ordering too many materials eats directly into your project budget. You end up paying for extra pallets of brick that you do not actually need. Furthermore, returning heavy masonry supplies is a back-breaking chore. Getting a highly accurate material estimate upfront protects your wallet and keeps your work moving smoothly. How to Use the Brick Calculator We designed this tool to handle all the complicated geometry for you. You do not need to be a professional mason to get a perfect material estimate. Just grab your tape measure and follow these simple steps: - Enter your dimensions: Measure the total length and height of the wall you want to build. If you are building a patio, enter the length and width of the area. Drop those numbers into the calculator. - Input your brick size: Tell the tool the exact length and height of the individual bricks you plan to buy. Standard bricks have set sizes, but you can easily adjust these numbers for custom or antique bricks. - Set the mortar joint width: Bricks never sit flush against each other. You need a gap for the mortar. Enter the thickness of your mortar joint so the tool can adjust your total brick count accordingly. - Add a waste factor: We highly recommend adding a waste percentage of around five to ten percent. This gives you a comfortable buffer for broken bricks, mistakes, and custom cuts at the ends of your wall. - Include the price: Enter the cost per brick to get an instant, reliable budget estimate for your entire project. Once you hit calculate, the tool instantly processes your numbers and generates your complete shopping list. Do Not Forget the Mortar What makes our calculator truly helpful is that it goes beyond simply counting bricks. A successful masonry project requires bricks and mortar working together perfectly. When you enter your project details, the calculator tells you the exact number of bricks to buy. But it also provides a precise estimate for your mortar. It calculates exactly how many bags of standard mortar mix you need to hold everything together. This prevents the classic mistake of buying enough brick but forgetting the very material that locks them in place. Get Ready to Start Building You have enough physical work ahead of you with heavy lifting and mixing. You should not have to worry about complicated area math while trying to plan your backyard transformation. Let our simple tool handle the calculations so you can focus on building something beautiful. Gather your site measurements, plug them into the Brick Calculator, and head into your next masonry project with total confidence. ## Frequently Asked Questions **Q: How many bricks per square foot?** A: With standard modular bricks (8 x 2-1/4 inches) and 3/8-inch mortar joints, you need approximately 6.5-7 bricks per square foot for a single-wythe wall. For pavers laid flat without mortar, about 4.5 bricks per square foot. **Q: What size is a standard brick?** A: The standard modular brick in the US is 7-5/8 x 3-5/8 x 2-1/4 inches (actual). With 3/8-inch mortar joints, it creates an 8 x 4 x 2-2/3 inch module. Other common sizes include queen, king, and utility bricks. **Q: How much mortar do I need?** A: Approximately 7 bags of 80-lb mortar mix per 1,000 standard bricks with 3/8-inch joints. For thicker joints or larger bricks, you will need more. One 80-lb bag of mortar mix yields about 30 standard-joint bricks. **Q: What is the waste factor for bricks?** A: Use 5% for simple straight walls with running bond pattern. Use 10% for walls with corners and openings. Use 15% for complex patterns like herringbone or basketweave, which require more cuts. --- Source: https://vastcalc.com/calculators/construction/brick Category: Construction Last updated: 2026-04-21