Tiling Calculator

About Tiling Calculator

Tiling Calculator estimates exactly how many tiles, bags of adhesive, and bags of grout you need for any floor or wall tiling project — built for UK tradespeople and DIYers.

Enter your room dimensions, pick a tile size from common UK presets, and the app does the rest. Add waste percentage, joint width, and unit prices to see total material costs in pounds.

KEY FEATURES

• Floor and wall tiling modes
• 14 UK retail tile size presets — mosaic, metro, 300×300, 600×600, 1200×600 and more
• Custom tile size with width, height, and thickness
• Configurable joint width (default 2mm wall, 3mm floor per BS 5385-1:2018)
• Waste allowance 0–25% (default 10% for straight lay)
• Adhesive coverage matched to BAL Single Part Flexible TDS — separate floor (5/4/3 m²/bag) and wall (10/7/5 m²/bag) rates by tile size
• Grout estimate using manufacturer formula (joint length × width × tile thickness × density 1.7 kg/L per Bostik TDS)
• Optional cost estimation with price-per-tile, price-per-bag inputs
• Clean breakdown of base tiles, waste tiles, and total
• Share results to text/email/messaging apps

CALCULATION ACCURACY

Built against UK industry standards: BS 5385-1:2018 wall and floor tiling, BAL adhesive technical datasheets, Bostik grout TDS, and TTA (The Tile Association) guidance. Tile size presets match Topps Tiles, Wickes, and B&Q retail standards.

WHO IT'S FOR

• Tilers and decorators sizing up jobs
• Home renovators planning bathrooms, kitchens, hallways
• Quantity surveyors estimating materials
• DIYers shopping at Wickes, B&Q, Topps Tiles, or trade merchants

OFFLINE READY

Calculate without an internet connection. Results saved nowhere — all numbers stay on your device.

DISCLAIMER

This calculator is a planning tool. Always cross-check critical material orders with your supplier or a qualified tradesperson. Wall mode does not subtract door or window openings — increase waste % or subtract openings manually for accurate net area.