Tile Calculator
Calculate the number of floor or wall tiles needed for an area, given the tile size.
- Free to use
- Accurate results
- No registration required
- Works on all devices
Enter your floor or wall area and tile size to find how many tiles you need.
10% is a common allowance for cuts, breakage, and pattern matching.
Your result
62
Tiles needed
Area20
AI explanation
Formula
Tiles needed = (area × (1 + wastage%)) ÷ tile area, rounded upWorked example
5m × 4m floor, 60cm × 60cm tiles, 10% wastage
| Field | Value |
|---|---|
| Area length (m) | 5 |
| Area width (m) | 4 |
| Tile length (cm) | 60 |
| Tile width (cm) | 60 |
| Wastage allowance (%) | 10 |
| Tiles needed | 62 |
| Area | 20 |
Assumptions
- Rounds up to a whole number of tiles, since partial tiles can't be purchased.
- Does not account for pattern layout, grout lines, or diagonal cutting waste beyond the wastage percentage entered.
Frequently asked questions
How much wastage allowance should I use for tiles?
10% is a common default; use more (12-15%) for diagonal layouts or rooms with many cuts around corners and fixtures, and less (5-8%) for a simple rectangular room.
Does this account for grout line width?
No — it uses the tile's face size only. Grout lines add a small amount to the effective tile spacing, which is usually negligible for quantity estimation.
Is there a version of this for outdoor pavers?
Yes — see the Paver Calculator, which uses the same calculation with larger default paver dimensions.