Calculate how many tiles you need for a room. Enter room and tile dimensions, choose wastage percentage. Instant calculation with recommended quantity.
Open Tile Calculator → free, no sign-inTiling a room requires knowing how many tiles to buy — which means calculating the room area, dividing by tile area, and adding a wastage percentage for cuts and breakages. Get it wrong and you're either making an extra trip to the tile shop or throwing away expensive tiles. The Tile Calculator does the maths: enter room dimensions and tile size, get the tile count with recommended wastage.
Homeowners planning a bathroom or kitchen tiling project, contractors estimating material quantities, anyone buying tiles and wanting to know the right amount before going to the shop.
No tutorials. No learning curve. Open it and get started.
No server uploads. Wastage percentage is configurable — adjust it based on the complexity of the room shape and cut requirements.
Completely free. No trial period. No premium tier for basic functionality. No account required. Use it as often as you need.
One job, done well. Tile Calculator was built to solve a specific problem cleanly. No feature bloat, no ads, no distractions.
What wastage percentage should I use?
10% for simple rectangular rooms with straight cuts. 15-20% for complex rooms or diagonal patterns.
Why do I need wastage?
Tiles get cut at edges and corners. Cuts waste tile material — always buy more than the exact calculation.
Can I calculate for a non-rectangular room?
Measure each rectangular section separately and add the quantities.
Does it account for grout lines?
Grout lines are typically small enough to ignore — the calculation assumes tile-to-tile coverage.
Should I buy spare tiles?
Yes — buy a few extra beyond the calculation to allow for breakages and future replacements.
Free. Instant. No sign-in. Open it and get the job done.
Open Tile Calculator on Doathingy.com →