Tile calculator
Enter the area, the tile size and the square feet on the box. Jobmath gives tiles and boxes with waste.
How it's calculated
Each step, in the order Jobmath runs it.
| Step | Formula |
|---|---|
| Area | Length × width |
| Tile size | Tile length × tile width ÷ 144 = square feet per tile |
| Tiles | Area × (1 + waste %) ÷ square feet per tile, rounded up |
| Boxes | Area × (1 + waste %) ÷ square feet per box, rounded up |
Common waste allowance
Allowances are common starting points; your layout decides.
| Layout | Extra to order |
|---|---|
| Straight lay, simple room | 10% |
| Diagonal or herringbone | 15% or more |
| Large-format tile | 10 to 15%, fewer cuts but costly breakage |
| Many corners, niches or obstacles | 15% or more |