Project estimates

Tile Calculator

Calculate the number of tiles needed to cover a floor or wall, including waste allowance. Use this Construction and home tool to enter your numbers, review the result, and understand the key assumptions before making the next decision.

What you get
A focused calculator, clear explanation, common questions, and useful next tools.
Quick intro
Calculator
Result
Explanation
Common questions
Related tools

Calculator tool

How this calculator works
The result depends on the numbers you enter and the assumptions shown below.

Tile count = area / tile area. Always add 10–15% waste for cuts, breakage, and future repairs. Larger tiles typically require more waste for cuts around edges and obstacles.

Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.

Frequently asked questions

How much extra tile should I buy?

Add 10% for a simple rectangular room with no obstacles. Add 15% for diagonal layouts or rooms with many cuts around fixtures.