Skip to content

Tile Calculator

Estimate tile area and full boxes.

Press Calculate, or Enter in any field.

Tile for a 15 × 12 ft room

Adds 10% waste and rounds up to full boxes.

Tile boxes

10boxes

Measured area
180 sq ft
Area including waste
198 sq ft
Assumption
20 sq ft per box

This is a planning estimate based on your inputs and assumptions, not an exact contractor, installer, or supplier quote.

What this calculator does

Calculate tile needs from dimensions, quantity, waste percentage, and package coverage.

Inputs and what they mean

Dimension unit
choice value.
Area length
number value.
Area width
number value.
Number of equal areas
number value.
Waste allowance
number value.
Coverage per box
number value.

How to use it

  1. Enter the project dimensions and choose their unit.
  2. Adjust waste, coverage, quantity, and other assumptions.
  3. Use the rounded purchase estimate as a planning guide.

Formula

Required material = length × width × quantity × (1 + waste%). Boxes are rounded up using user-entered package coverage.

Worked example

Tile for a 15 × 12 ft room

Adds 10% waste and rounds up to full boxes.

Reading the result

The headline figure is the main answer. Any breakdown underneath shows the parts that make it up, so you can check the working and see what changes when you adjust an input.

Limitations and assumptions

This is a planning estimate based on your inputs and assumptions, not an exact contractor, installer, or supplier quote.

Common questions

Related tools

Estimate paint containers from room dimensions and coverage.

Home

Estimate flooring area and full boxes.

Home

Estimate concrete volume and bag quantity.

Home

Estimate roof area, squares, and bundles.

Home

Estimate gravel volume and bag quantity.

Home

Estimate mulch volume and bag quantity.

Home

People also use