Brick Calculator for Walls, Pillars & Mortar
This brick calculator estimates how many bricks you need for a wall, plus the mortar, cement, and sand to go with them. Enter your wall dimensions and brick type, and it works out the totals instantly — no spreadsheets, no rough guesses.
It is built for anyone planning a brick project: DIY builders sizing a garden wall, contractors ordering for a house extension, or estimators checking a quote. Add multiple walls, deduct doors and windows, include pillars, and apply a waste factor so your order matches what the site actually needs.
How to Use the Brick Calculator
Select a brick type
Pick one of the six presets — Standard (UK), Modular (US), Vietnamese, Engineer, King Size — or choose Custom to enter your own length, width, height, and weight.
Choose a bond pattern
Select Stretcher, Header, Flemish, English, or Stack. Each pattern changes the number of bricks per square meter, so the count reflects how the wall is actually laid.
Configure the settings
Set the Wall Thickness (Half Brick or Full Brick), Mortar Joint (default 10 mm), Mortar Mix ratio, and Waste Factor. Add Bricks / Pack if you want to know how many packs to order.
Enter walls and openings
Type the length and height for each wall, and use Add Wall for more. For doors and windows, click Add under Openings and enter the width, height, and quantity — their area is deducted automatically.
Add pillars (optional)
For columns or pillars, click Add Pillar and enter the width, depth, height, and quantity. The calculator uses a volume-based estimate and folds those bricks into the total.
Review and export
Read the total bricks, mortar, weight, and per-wall breakdown. Open Cost Estimate to add unit prices, then click Export PDF for a full report.
Features
Six Brick Presets
Standard (UK), Modular (US), Vietnamese, Engineer, King Size, or Custom — each with accurate dimensions and weight for the estimate.
Five Bond Patterns
Stretcher, Header, Flemish, English, and Stack. The bricks-per-m² figure adjusts for the mix of stretcher and header faces in each bond.
Flexible Units
Work in meters, centimeters, millimeters, feet, or inches. Switch anytime and wall and pillar inputs update to match.
Walls with Openings
Add as many walls as you need and deduct doors, windows, and other openings by width, height, and quantity for an accurate net area.
Pillar Calculation
Estimate bricks for columns and pillars with a volume-based method — enter width, depth, height, and quantity per pillar type.
Mortar Estimate
Get mortar volume in m³, the number of 50 kg cement bags, and sand volume, using your chosen cement-to-sand ratio (1:3, 1:4, 1:5, or 1:6).
Weight Estimate
See the weight of bricks, mortar, and combined total in kilograms or tonnes — useful for structural planning and transport.
Cost Estimate
Enter prices for bricks, cement bags, and sand to get a material cost breakdown alongside the quantity results.
Waste Factor & Packs
Add a waste allowance from 0 to 20% for cuts and breakage, and set bricks per pack to see how many packs to order.
PDF Report Export
Download an A4 report with your configuration, brick count, mortar, weight, wall and pillar breakdowns, and cost summary.
Auto-Save
Settings, walls, pillars, and prices are saved in your browser, so everything is restored exactly as you left it when you return.
Per-Wall Breakdown
When you add several walls or pillars, a breakdown shows the net area and brick count for each one, not just the grand total.
Frequently Asked Questions
How many bricks do I need per square meter?
It depends on the brick size, mortar joint, bond pattern, and wall thickness. For a standard brick in a half-brick stretcher-bond wall with a 10 mm joint, you typically need around 60 bricks per square meter. The calculator works out the exact bricks-per-m² figure for your chosen settings and shows it in the results.
How accurate is this brick calculator?
It uses standard construction formulas based on your brick dimensions, mortar joint, bond pattern, wall thickness, and waste factor. Real quantities can still vary a little with cutting patterns and site conditions, so adding a 5–10% waste factor is recommended to cover breakage and cuts.
What is the difference between a half brick and a full brick wall?
A Half Brick wall (single skin) is one brick width thick, roughly 102.5 mm. A Full Brick wall (double skin) is one brick length thick, roughly 215 mm. A full brick wall uses about twice as many bricks and noticeably more mortar.
How much mortar and cement do I need?
The calculator estimates mortar from the bed joints (horizontal) and perpend joints (vertical) per square meter of wall, then splits it into 50 kg cement bags and sand volume using your cement-to-sand ratio. Full-brick walls and complex bonds get an extra factor to account for collar joints, and pillar mortar is approximated from pillar volume.
Which mortar mix ratio should I use?
Use 1:3 for strong work like foundations, 1:4 for structural and load-bearing walls, 1:5 for general above-ground walls, and 1:6 for lighter, non-load-bearing internal walls. Pick the ratio that matches your structural needs and the calculator adjusts the cement and sand totals.
What waste percentage should I add?
A waste factor of 5–10% is typical for most projects to cover cuts, breakage, and defective bricks. You can set it anywhere from 0 to 20% in the settings; jobs with lots of openings or curves may warrant the higher end.
Can I calculate bricks for pillars?
Yes. Click Add Pillar and enter the width, depth, height, and quantity for each pillar type. The calculator uses a volume-based approach to estimate the pillar bricks and adds them to the overall total.
Is my data saved and kept private?
Yes. Your settings, walls, pillars, and prices are saved automatically in your own browser and restored when you return — nothing is uploaded anywhere. Click Reset to clear the saved data and return to the defaults.
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