Wall Tiles Calculator
Calculate tiles needed for bathrooms, kitchens, and feature walls
About This Calculator
This calculator helps you determine the number of wall tiles required for your tiling project. It accounts for tile dimensions, wall area, and includes a wastage allowance for cuts and breakages.
Wall tiles are commonly used in bathrooms, kitchens, and as decorative features. Getting the quantity right ensures you have enough tiles to complete the job without excessive waste.
How to Use
- Measure the width and height of the wall area to be tiled
- Check the dimensions of your chosen tiles (width × height in mm)
- Decide on your wastage percentage (10-15% recommended for cuts)
- Enter the values and calculate
Common Tile Sizes
Small Format
100×100mm, 150×150mm, 200×200mm
Good for mosaic effects and small spaces
Standard
300×200mm, 300×300mm, 400×250mm
Most common for kitchens and bathrooms
Large Format
600×300mm, 600×600mm
Modern look, fewer grout lines
Subway/Metro
150×75mm, 200×100mm
Classic brick pattern style
Tips
- Always buy 10-15% extra for cuts and future repairs
- Check that all tiles are from the same batch for colour consistency
- Consider the grout line width in your calculations (typically 2-3mm)
- Order samples before buying large quantities
Ready to Calculate?
Enter your measurements and tile specifications to get an accurate estimate.
Launch CalculatorReferences & Sources
Standards Cited
- BS EN 14411 — Ceramic tiles — Definitions, classification, characteristics, assessment and verification of constancy of performance and marking
Defines standard ceramic tile sizes and dimensional tolerances - BS 5385-1 — Wall and floor tiling — Part 1: Design and installation of internal ceramic, natural stone and mosaic wall tiling in normal conditions
Provides guidance on wall tile installation, wastage allowances, and layout planning
Formulas Used
- Wall Area:
A = wallWidth x wallHeight
Source: Standard geometry - Tile Area:
tileArea = (tileWidth / 1000) x (tileHeight / 1000)
Source: BS 5385-1 — Tile dimensions converted from mm to m - Tiles Needed:
tiles = ceil(wallArea / tileArea)
Source: BS 5385-1 installation guidance - Tiles with Wastage:
total = ceil(tilesNeeded x (1 + wastage% / 100))
Source: BS 5385-1 — Typical wastage 10-15% for cuts and breakages
Key Assumptions
- Wastage of 10-15% recommended for cuts, breakages, and future spares — BS 5385-1
- Grout joint width not included in tile area calculation (conservative estimate) — Industry standard practice