Tile Calculator
Calculate how many tiles and boxes you need for your floor or wall project. Estimates total area, tile count, and cost including waste allowance.
1. Room Dimensions
2. Tile Size
3. Project Details
Recommended: 10% for standard, 15% for diagonal patterns.
Ready to Calculate
Enter your dimensions to see tile count and cost.
How to Calculate Tiles Needed
Estimating tiles for a renovation project involves calculating the total area of the surface and dividing it by the area of a single tile. It is crucial to add a waste factor for cuts and breakage.
- Measure the Room: Multiply the length by the width to get the total area (e.g., in square feet).
- Calculate Tile Area: Multiply the tile length by the tile width. Ensure you use the same units as the room (convert inches to feet if necessary).
- Divide: Room Area ÷ Tile Area = Raw number of tiles.
- Add Waste: Multiply the raw count by 1.10 (for 10% waste) or 1.15 (for 15%).
Waste Factor Guidelines
- 10%: Standard simple rooms, straight lay pattern.
- 15%: Rooms with angles, curves, or diagonal (diamond) tile patterns.
- 20%+: Complex mosaics or poor quality tiles prone to breakage.
Tips for Buying
Always buy all your tiles at once to ensure they come from the same "dye lot" or batch. Slight color variations can occur between batches. Buying an extra box beyond the calculation is often smart for future repairs.
? Frequently Asked Questions
This varies by tile size and manufacturer. A box of 12x12 tiles often contains 10-15 tiles. A box of smaller subway tiles might contain 50+. Always check the packaging.
Generally, no. For estimating purposes, calculating without grout lines provides a built-in safety margin. If you calculate area strictly with wide grout lines, you might under-order.
Measure the length of the counter and multiply by the height of the space up to the cabinets. Treat it as a rectangle area, just like a floor.