# Tile Calculator

> Count tiles with joints and cutting waste, and size the adhesive, for any room area.

Calculate how many tiles you need plus adhesive from floor area, tile size, joint width and waste. Free, instant, with full working shown.

- **Canonical:** https://build.ailovekit.com/calculators/tile-calculator/
- **Category:** Calculator
- **Processing:** Runs entirely in your browser. Files are never uploaded to AiLoveKit servers.

## How It Calculates

- **Formula:** Tiles = area ÷ (tile + joint)² + waste

**Inputs:**

- Floor / wall area
- Tile size
- Joint width (mm)
- Cutting waste %

All calculation runs locally in your browser; results update as you type and include the substituted working.

## Buy the Right Number of Tiles the First Time

Different tile batches vary in shade, so running short mid-job is more than an inconvenience. AiLoveKit's **tile calculator** counts tiles from your area and chosen size, adds joint spacing and cutting waste, and sizes the adhesive - so one order covers the whole room.

## Quick Planning Rules

- **Straight lay** - add 5% waste.

- **Diagonal or patterned** - add 10 to 15%.

- **Keep spare tiles** - store 2 or 3 full tiles for future repairs.

## Frequently Asked Questions

**Should I really add cutting waste?**

Yes. Rooms have corners, doorways and pipe cuts; 5% covers straightforward layouts while diagonal or herringbone patterns need 10 to 15%.

**How much adhesive do I need?**

The calculator assumes about 4 kg/m² for a 6 mm notch trowel on a flat surface. Uneven substrates and large-format tiles need more.

**Do I need grout too?**

Yes - grout covers the joints. Narrow joints use less; a 3 mm joint over 20 m² typically takes 1 to 2 kg depending on tile thickness.

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Source: https://build.ailovekit.com/calculators/tile-calculator/
Part of AiLoveKit: https://build.ailovekit.com/
Machine-readable index: https://build.ailovekit.com/llms.txt