How many tiles do you actually need?
Enter your area and tile size and get a precise answer in tiles and boxes — waste allowance included, no sign-up, no guessing.
Quick reference: common room sizes
Rough estimates at 10% waste, 12x12 inch tiles, 15 sq ft per box. Use the calculator above for your exact numbers.
| Room size | Floor area | Tiles needed | Boxes |
|---|---|---|---|
| Small bathroom (6 × 8 ft) | 48 sq ft | 53 | 4 |
| Standard bathroom (8 × 10 ft) | 80 sq ft | 88 | 6 |
| Kitchen (10 × 12 ft) | 120 sq ft | 132 | 9 |
| Standard bedroom (12 × 12 ft) | 144 sq ft | 159 | 11 |
| Living room (14 × 16 ft) | 224 sq ft | 247 | 17 |
Common questions
How many tiles do I need for a 10x10 room?
A 10×10 ft room is 100 sq ft. With 12×12 inch tiles (1 sq ft each) and a standard 10% waste allowance, you'd need about 110 tiles. Use the calculator above with your exact numbers and tile size for a precise figure, including how many boxes to buy.
How much extra tile should I buy for waste?
10% is standard for a straight layout. Diagonal layouts need about 15%, and complex patterns or rooms with lots of cuts around corners and fixtures can need 20% or more.
How do I calculate how many boxes of tile I need?
Divide your total area — including the waste allowance — by the coverage per box printed on the packaging, then round up to the next full box. Box coverage varies by tile size and brand, commonly 10–20 sq ft per box, so check yours and adjust the "advanced" field above.
Does tile size affect how much waste I need?
Yes — larger tiles generally waste less material proportionally since fewer cuts are needed to fill a space, while smaller tiles or mosaics can need a bit more waste allowance due to more numerous edge and corner cuts.