Home Improvement Calculator
Tile & Flooring Calculator
Calculate the exact number of tiles, total surface area, and boxes needed for your floor or wall project instantly.
How to Calculate Tiles for Floors and Walls
Calculating the correct amount of tiles prevents shortages mid-project or overspending on excess materials. Here is how tile estimation works:
- Measure the length and width of the room and multiply them to get the total surface area.
- Calculate the area of a single tile by multiplying its length and width.
- Divide the room area by the individual tile area to find the base number of tiles.
- Add a waste percentage (usually 10% for straight layouts, 15% to 20% for diagonal cuts or rooms with pillars) to account for cuts and breakages.
Frequently Asked Questions
Why should I add a waste percentage?
Cutting tiles to fit corners, edges, and pipes inevitably results in discarded scraps and occasional breakage. Adding 10% extra ensures you won't run short.
How do I measure irregular rooms?
Break down complex or L-shaped rooms into smaller rectangular sections, calculate the area of each section separately, and add them together.