Brick Quantity Calculator

Calculate the number of bricks needed for masonry, mortar quantity, and material costs, with support for multiple brick sizes and wall types.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

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If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

Return to old version

Set brick, wall, and mortar joint parameters first, then calculate brick quantity, mortar, cement, sand, and cost.

Supports 12, 24, 37, 49 walls and custom thickness; door/window openings are deducted automatically, and batch CSV can be exported as a ZIP.

Multiple brick sizes Opening deduction Material Cost Savable settings

Batch files No files selected

After uploading multiple CSV or TXT files, the first 20 file names appear here. All will be calculated and written to a ZIP during processing.

Settings

Select a calculation mode and brick size first. Defaults fit common 240×115×53mm standard bricks, with 10mm mortar joints.

ModeWall mode is for actual masonry; volume mode estimates per cubic meter

Brick sizeAfter choosing a preset, you can still adjust length, width, and height

Spec preset

Brick length mm

Brick width mm

Brick height mm

Mortar joint mm Common brick walls use 8-12mm.

Waste rate %

Mortar mix ratio

Dry material factor Empirical factor to convert wet mortar to dry material.

Bulk dataPaste CSV or upload multiple CSV/TXT files

Enter data directly Mode can be wall, volume, or area. Headers are detected and skipped.

Upload batch files Click to choose files, or drag them here Supports .csv and .txt, with multi-select. Export creates a matching result file for each; duplicates get numbers.

Wall and cost

Set wall size, thickness, openings, and material prices. Volume or area mode shows only needed inputs.

Project dimensionsNet area automatically subtracts opening areas below

Wall length m

Wall height m

Wall thickness

Custom thickness mm

Masonry volume m³

Net wall area m²

Wall thickness layer factor 12 wall ≈ 1, 24 wall ≈ 2, 37 wall ≈ 3, 49 wall ≈ 4.

Project Name

Door/window opening deduction

If the opening area is too large, net wall area is set to 0 with a warning.

Material prices and conversionsQuantities are still calculated if prices are blank or 0

Brick unit price CNY/brick

Cement unit price CNY/bag

Sand unit price CNY/m³

Other costs CNY

Cement bulk density kg/m³

Cement per bag kg

Sand reference density kg/m³

Calculate & export

After calculating, view brick purchase quantity, mortar, cement, sand, cost details, and export TXT, CSV, or ZIP.

Calculation results Set parameters first, then click “Start Calculation”.

Waiting to calculateAfter setting the parameters above, generate the material estimate in step 3.

Base brick qty-pieces

Suggested purchase-Incl. waste

Mortar wet volume-m³

Material cost-CNY

Item	Value	Description

#	Name	Mode	Brick size	Quantity	Suggested purchase	Mortar m³	Cost

Instructions

Software Instructions

Select a calculation mode: Choose wall material quantity, calculate by volume, calculate by area, or batch calculation. For ordinary brick walls, “wall material quantity” is recommended; use “batch calculation” when multiple data sets are needed.
Set brick specifications: Select from presets such as Chinese standard bricks, perforated bricks, hollow bricks, concrete blocks, and aerated blocks, or manually enter the brick length, width, and height.
Configure mortar joints and waste: Enter the mortar joint thickness, waste rate, mortar mix ratio, and dry material coefficient. Common joints can be set to 8-12mm, and the waste rate can be adjusted based on transportation, cutting, and construction conditions.
Enter wall parameters: Enter the wall length, wall height, and wall thickness. 12-wall, 18-wall, 24-wall, 37-wall, 49-wall, and custom thicknesses are supported. When calculating by area or volume, enter the corresponding project quantity.
Add opening deductions: Enter the name, width, height, and quantity for door and window openings. The tool will automatically deduct the opening area to reduce material estimation errors.
Enter material prices: You can enter the brick unit price, cement unit price, sand unit price, and other costs. The results will show the totals for bricks, cement, sand, and costs.
Start calculation and export: Click “Start Calculation” to view the number of bricks, recommended purchase quantity, mortar volume, number of cement bags, and sand quantity. You can copy the results or download TXT, CSV, or ZIP files.
Batch calculation: You can paste CSV data or upload CSV/TXT files. The interface previews the first 20 records, and all records will be processed and packaged for download when exporting.

FAQ

A: Wall material quantity is suitable for entering wall length, wall height, and door/window openings; calculation by area is suitable when the net wall area is already known; calculation by volume is suitable for estimating materials based on masonry cubic volume.

A: Mortar joints for ordinary brick walls are commonly estimated at 8-12mm, and the tool defaults to 10mm. The thicker the joint, the larger the calculation module for each brick, so the number of bricks will decrease accordingly, but mortar usage will increase.

A: A 12 wall is often used for partition walls, a 24 wall for standard brick walls, and 37 and 49 walls for thicker walls. The tool will automatically set the wall thickness and layer coefficient, or you can choose a custom thickness and adjust it manually.

A: In the openings section, enter the width, height, and quantity for each type of door or window. The system calculates the opening area as width × height × quantity and deducts it from the total wall area.

A: For ordinary brick walls, you can estimate 3%-5%; when there is a lot of cutting, long transport distance, or blocks are more prone to damage, estimate 5%-10%. The recommended purchase quantity in the results already includes waste.

A: The mortar mix ratio affects the split quantities of cement and sand. For example, 1:4 means 1 part cement to 4 parts sand; when the cement proportion is higher, the cement quantity and cost will increase.

A: Batch data should be entered in CSV format, with fields in this order: name, mode, brick length, brick width, brick height, mortar joint, waste, wall length or volume or area, wall height, wall thickness, number of layers, opening area, mix ratio, brick unit price, cement unit price, sand unit price. The mode can be wall, area, or volume.