Tile Calculator
Estimate how many tiles you need for a floor, wall, bathroom, kitchen, patio, or renovation project. Add room size, tile size, waste percentage, tiles per box, and box price to get a clear material estimate.
Calculate Tile Requirement
Your Result
Enter your room and tile details to see the estimated tiles, boxes, and project cost.
About This Tile Calculator
This Tile Calculator helps homeowners, contractors, and DIY renovators estimate tile quantity before starting a project. It works for floor tiles, wall tiles, bathroom tiles, kitchen backsplash tiles, outdoor tiles, and other rectangular areas.
The calculator uses your total surface area, tile size, grout gap, and waste percentage to estimate how many tiles are required. You can also enter tiles per box and price per box to calculate how many boxes to buy and the expected material cost.
Accurate Area Estimate
Calculate the total square footage of your space and match it with your selected tile size.
Box Quantity Planning
Enter tiles per box to know how many boxes you should purchase for your project.
Cost Calculation
Add price per box to estimate your total tile material cost before buying.
How It Works
Enter the Area Size
Add the length and width of the floor, wall, or surface in feet.
Add Tile Dimensions
Enter the length and width of one tile in inches, such as 12 x 12 or 24 x 24.
Include Waste Percentage
Add extra percentage for cutting, breakage, edges, and layout mistakes. Most projects use 10% to 15%.
Review Tiles, Boxes, and Cost
The tool shows total tiles needed, boxes required, and estimated cost if price details are added.
Tile Calculator FAQs
How many extra tiles should I buy?
For most straight tile layouts, 10% extra is recommended. For diagonal patterns, complex corners, or large rooms, 15% to 20% extra may be safer.
Can I use this calculator for wall tiles?
Yes. Enter the wall height as length and wall width as width, or measure the total wall area in feet using the same method.
Does grout gap affect tile quantity?
Yes, grout spacing can slightly affect coverage. This calculator includes an optional grout gap field in millimeters.
What tile size should I enter?
Enter the actual size of one tile in inches. For example, if your tile is 12 inches by 24 inches, enter 12 and 24.
Why are boxes rounded up?
Tile boxes are sold as complete boxes, so the calculator rounds up to make sure you buy enough material.