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Tile Quantity Calculator (Room Size + Tile Size)

Calculate how many tiles you need using room size and tile size, including wastage and boxes, instantly.

Tile Quantity Calculator

Room Size + Tile Size = Tiles Required

Room Dimensions
Choose units, then enter length & width
Room length and width will use this unit.
For L-shape, enter both sections below.
L-Shape Section A
Enter Length & Width for first rectangle
L-Shape Section B
Enter Length & Width for second rectangle
L-shape area is calculated as A area + B area. Avoid entering overlapping rectangles.
Tile Details
Set tile size and coverage options
Tile length and width will use this unit.
Typical: 5–10% (straight) or 10–15% (diagonal cuts).
If included, tile pitch = tile size + grout gap.
Enter if you want boxes required.
Tip: For walls, calculate each wall area and add them, or use L-shape mode as two sections.

Results

Tiles, Coverage & Boxes

Waiting for input
Room Area
Enter room dimensions to calculate.
Tile Coverage (each)
Based on tile size (and grout gap if used).
Tiles Required
Wastage: —
Base Tiles
Before wastage
Extra Tiles
For cuts/breaks
Total Tiles
Recommended
Coverage Utilization
0%
Boxes & Summary
Room Area (m²)
Tile Area (m²)
Total Coverage (m²)
Tiles per Box
Boxes Needed
Tip: Add more wastage for diagonal layouts, patterned tiles, or lots of corners.
Copy-ready Result
Enter values and click Calculate to generate a summary you can copy.

What is this tool

The Tile Quantity Calculator is an online tool that estimates how many tiles are required to cover a room based on total room size and individual tile dimensions. It also factors in wastage percentage and calculates the number of tile boxes needed for purchase planning.

Why this tool is useful

This tool helps avoid ordering too few or too many tiles for a flooring or wall project. Accurate tile estimates reduce material waste, control costs, and make installation planning more efficient for both small and large spaces.

How this tool works

You enter the room length and width along with the tile length and width. The calculator determines the total surface area and divides it by the area of a single tile to estimate tile count. It then applies a user selected wastage percentage and converts the final total into required boxes based on tiles per box.

Key features or capabilities

The tool calculates total tiles required, adjusted tiles with wastage, and estimated tile boxes. It supports common measurement units and provides instant results suitable for floor and wall tiling projects.

Common use cases

This calculator is commonly used for floor tiling, wall tiling, kitchen backsplashes, bathroom renovations, and construction planning where accurate tile counts and box quantities are needed before ordering materials.

Who should use this tool

This tool is suitable for homeowners, contractors, tile installers, interior designers, renovators, and general users planning tiling work in residential or commercial spaces.

Accuracy privacy or safety

Calculations are based on standard area formulas and the measurements provided by the user. Results are estimates for planning purposes and may vary slightly based on layout patterns and cutting needs. No personal data is collected or stored.

Is this tool free to use

Yes, the Tile Quantity Calculator is completely free to use online with unlimited calculations and no registration required.

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