How to use the Tile Calculator
The tile calculator finds how many tiles you need to cover an area.
What you need to enter
- Area length (ft)
- Area width (ft)
- Tile length (in)
- Tile width (in)
- Waste (%)
The formula
Tiles = area ÷ tile area × (1 + waste).
Worked example
Using the default values in the calculator:
- Area length (ft): 12
- Area width (ft): 10
- Tile length (in): 12
- Tile width (in): 12
- Waste (%): 10
| Tiles needed | 132 |
| Area | 120 sq ft |
| Boxes of 10 | 14 |
Tips for better results
- Add 10–15% for cuts.
- Buy extra from the same batch.
Common mistakes to avoid
- Ignoring grout.
- Mixing units.
Please note: Results are estimates for general use. For safety-critical work such as electrical or building projects, check with a qualified professional and local codes. See our Disclaimer.