Tile Count Calculator
Divide the area by the area of one tile, then add a waste allowance. 10–15% extra is normal to cover cuts and breakage.
Your numbers
Tiles needed
62
Count
56
Area
0.36m²
Formula
Tiles needed = Area ÷ (Tile side ÷ 100)² × (1 + Waste allowance ÷ 100)
The second figure is the bare minimum with no allowance. Diagonal layouts waste more — budget 15% or above.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Area (m²)The space a shape covers — length squared. | 20 | 0 and up |
| Tile side (cm)One edge of a single tile. | 60 | 1 and up |
| Waste allowance (%)The extra bought to cover breakage and offcuts. | 10 | 0 ~ 50 |
Step by step
Quick reference table
Results when only Area (m²) changes and everything else stays put.
| Area (m²) | Tiles needed | Count | Area (m²) |
|---|---|---|---|
| 10 | 31 | 28 | 0.36 |
| 15 | 46 | 42 | 0.36 |
| 20 | 62 | 56 | 0.36 |
| 30 | 92 | 84 | 0.36 |
| 40 | 123 | 112 | 0.36 |
What each result means
| Result | At default values |
|---|---|
| Tiles neededTiles needed; cutting waste comes on top of this. | 62 |
| CountA plain count of items; it often ends up as the denominator. | 56 |
| Area (m²)The space a shape covers — length squared. | 0.36 |
Common mistakes
The second figure is the bare minimum with no allowance. Diagonal layouts waste more — budget 15% or above.
Glossary
- Area
- The space a shape covers — length squared.
- Tile side
- One edge of a single tile.
- Waste allowance
- The extra bought to cover breakage and offcuts.
- Tiles needed
- Tiles needed; cutting waste comes on top of this.
- Count
- A plain count of items; it often ends up as the denominator.
Frequently asked questions
Q. How is Tile Count Calculator calculated?
Tiles needed = Area ÷ (Tile side ÷ 100)² × (1 + Waste allowance ÷ 100) — Divide the area by the area of one tile, then add a waste allowance. 10–15% extra is normal to cover cuts and breakage.
Q. Can you walk through an example?
With Area 20m², Tile side 60cm, Waste allowance 10%, the answer is Tiles needed 62.
Q. What do I need to enter?
Enter Area, Tile side, Waste allowance. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Area (m²) moves the answer to Area (m²) 10 → Tiles needed 31 and Area (m²) 40 → Tiles needed 123. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
The second figure is the bare minimum with no allowance. Diagonal layouts waste more — budget 15% or above.
Related calculators
Keep your length units consistent across inputs — mixing centimetres and metres throws results far off.