Calculate the exact number of tiles needed for your project with our advanced tile calculator. Save time and money by getting precise measurements including waste factor.
This diagram shows the relationship between tile dimensions, area to cover, and gap size.
Impacts tile count slightly. Option to exclude/include spacing.
| Tile Size | Area Covered (sq ft/tile) |
|---|---|
| 12x12 inch (1x1 ft) | 1.0 |
| 18x18 inch | 2.25 |
| 24x24 inch | 4.0 |
| 300x300 mm | 0.09 m² |
| 600x600 mm | 0.36 m² |
Answer: 198 tiles
Room area: 15 ft × 12 ft = 180 sq ft
Each 12×12 inch tile covers 1 sq ft
Tiles needed: 180 sq ft ÷ 1 sq ft = 180 tiles
With 10% waste: 180 × 1.10 = 198 tiles
Answer: 43 tiles
Room area: 4m × 3.5m = 14 sq m
Each 600×600 mm tile covers 0.36 sq m
Tiles needed: 14 sq m ÷ 0.36 sq m = 38.89 tiles (round up to 39)
With 7% waste: 39 × 1.07 = 41.73 tiles (round up to 43)
Answer: 49 tiles
Room area: 10 ft × 10 ft = 100 sq ft
Each 18×18 inch tile covers 2.25 sq ft
Tiles needed: 100 sq ft ÷ 2.25 sq ft = 44.44 tiles (round up to 45)
With 10% waste: 45 × 1.10 = 49.5 tiles (round up to 50)
Answer: 238 tiles
Wall area: 9 ft × 8 ft = 72 sq ft
Each 4×8 inch tile covers 0.22 sq ft
Tiles needed: 72 sq ft ÷ 0.22 sq ft = 327.27 tiles (round up to 328)
With 10% waste: 328 × 1.10 = 360.8 tiles (round up to 361)
Answer: 132 tiles
Backsplash area: 10 ft × 2 ft = 20 sq ft
Each 3×6 inch tile covers 0.125 sq ft
Tiles needed: 20 sq ft ÷ 0.125 sq ft = 160 tiles
With 10% waste: 160 × 1.10 = 176 tiles
Answer: 64 tiles
Wall area: 2.5m × 2.1m = 5.25 sq m
Each 300×300 mm tile covers 0.09 sq m
Tiles needed: 5.25 sq m ÷ 0.09 sq m = 58.33 tiles (round up to 59)
With 10% waste: 59 × 1.10 = 64.9 tiles (round up to 65)
Answer: 99 tiles
Terrace area: 20 ft × 18 ft = 360 sq ft
Each 24×24 inch tile covers 4 sq ft
Tiles needed: 360 sq ft ÷ 4 sq ft = 90 tiles
With 10% waste: 90 × 1.10 = 99 tiles
Answer: 42 tiles
Balcony area: 3m × 2m = 6 sq m
Each 400×400 mm tile covers 0.16 sq m
Tiles needed: 6 sq m ÷ 0.16 sq m = 37.5 tiles (round up to 38)
With 10% waste: 38 × 1.10 = 41.8 tiles (round up to 42)
Answer: 121 tiles
Room area: 14 ft × 10 ft = 140 sq ft
Each 16×16 inch tile covers 1.78 sq ft
Tiles needed: 140 sq ft ÷ 1.78 sq ft = 78.65 tiles (round up to 79)
For diamond layout, use 15% waste: 79 × 1.15 = 90.85 tiles (round up to 91)
Answer: 53 tiles
Corridor area: 20m × 1.2m = 24 sq m
Each 600×600 mm tile covers 0.36 sq m
Tiles needed: 24 sq m ÷ 0.36 sq m = 66.67 tiles (round up to 67)
For herringbone pattern, use 20% waste: 67 × 1.20 = 80.4 tiles (round up to 81)
You haven't completed the quiz yet.
For a 10x10 room using 12×12 inch tiles, you would need 100 tiles plus 10% waste, totaling 110 tiles. For larger tiles like 18×18 inch, you would need 50 tiles plus 10% waste, totaling 55 tiles.
Yes, you should always include a waste factor in your tile calculations. For simple layouts, 5-10% is sufficient. For complex patterns, diagonal installations, or rooms with many cuts, 15-20% is recommended.
To calculate wall tiles for a shower, measure the height and width of each wall to be tiled. Multiply these dimensions to get the area of each wall, then add them together. Don't forget to subtract the area of any doors or windows. Add 10-15% for waste.
For small bathrooms, larger tiles (12×12 inch or larger) can actually make the space appear bigger because there are fewer grout lines. However, smaller tiles offer more flexibility for fitting around fixtures and creating patterns.
Yes, you can calculate tiles for a circular area. First, calculate the area of the circle using the formula πr² (pi times radius squared). Then divide this area by the area of one tile. Add a higher waste factor (15-20%) for circular areas due to the increased cutting required.
Ensure your surface is clean, level, and dry before beginning. Any imperfections in the substrate will show through in the finished tile work.
Take precise measurements and double-check them before making any cuts. It's better to be conservative with your cuts and adjust as needed.
Before applying adhesive, dry lay your tiles to determine the best starting point and layout. This helps avoid awkward cuts and ensures a balanced appearance.
Allow adequate drying time between steps. Rushing the process can lead to uneven tiles, lippage, and other issues that are difficult to fix later.
Always order 10-15% extra tiles to account for breakage and cutting. Keep these extras for future repairs, as matching the exact dye lot later can be difficult.
Apply appropriate sealers to protect your tiles and grout from moisture and stains. This is especially important in wet areas like bathrooms and kitchens.
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