Tile Calculator - Square Feet Tiles Needed for Room
Calculate how many tiles you need for any room. Enter room and tile dimensions to get tiles needed, area covered, and boxes required.
How to use this calculator
👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉
In plain English — what does this do?
📊 A helper for daily life! Things like working out your age, how much to tip, what a sale price is, or how long until your birthday. Quick and easy answers for real life!
A tile calculator helps you estimate how many tiles you need to cover a floor or wall. It accounts for tile dimensions, room size, and a waste percentage to ensure you buy enough tiles without running short mid-project.
Tiles Needed
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Area Covered
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Boxes Needed
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Base Tiles
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What is Tile Calculator - Square Feet Tiles Needed for Room?
A tile calculator helps you estimate how many tiles you need to cover a floor or wall. It accounts for tile dimensions, room size, and a waste percentage to ensure you buy enough tiles without running short mid-project.
How to use it
- 1️⃣ Enter the room length and width in your chosen unit (inches or cm).
- 2️⃣ Enter the tile length and width in the same unit.
- 3️⃣ Set a waste percentage — 10% is standard for most installations.
- 4️⃣ Click Calculate to see tiles needed, area covered, and boxes required.
- 5️⃣ Always buy at least 10% extra to account for cuts, breakage, and future repairs.
Formula
💡 See it in action — a real example
❓ Common questions
- What waste percentage should I use?
- Use 10% for straight-lay patterns, 15% for diagonal patterns, and up to 20% for complex cuts or irregularly shaped rooms.
- How many tiles come in a box?
- This varies by tile size and manufacturer. The calculator assumes 10 tiles per box, but check your specific product's box count.
- Should I measure in inches or cm?
- Use whichever unit your tape measure uses, but be consistent — room and tile dimensions must be in the same unit.
- Do I need extra tiles for grout lines?
- Grout lines are typically 1/8 to 3/8 inch and have a negligible effect on tile count for most rooms. The waste percentage covers this.
- Can I use this for wall tiles?
- Yes. Just enter the wall height as the 'length' and wall width as the 'width' to calculate wall tile coverage.