Tile Calculator

Calculate the number of tiles needed with gap spacing, optional box count, and price — matching inputs while keeping your UI.

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Get instant, accurate results

Tile Size

Use negative value for overlaps.

tiles per box

How to Use the Tile Calculator

Planning for a flooring or wall tile job may look easy, but tiny errors in measurements can easily translate to waste, additional expenses, or unfinished projects. Tile size, room size, grout spacing, breakage factor, or box quantities may all influence the final requirement for tile quantities. The Tile Calculator uses algorithms to eliminate the uncertainty. This tile calculator assists you in determining the precise tile quantity needed for your space and takes into consideration the space created by the grout, the box quantities, and the cost. This tile calculator can be helpful if you are remodeling your bathroom, tile your kitchen floor, or undertaking a large construction job. With accurate math and variable input capabilities, this calculator assists you in planning and preventing shortages as well as reducing unnecessary wastage.

How to Use

1. Enter Tile Dimensions

First, you are required to input the length and width of a single tile. You also need to specify the correct unit (in cm, inches, and meters).

2. Choose Area Calculation Method

You can choose to input the dimensions of the room (length and width) or simply the area. It is a convenient feature for irregular rooms.

3. Set Gap (Grout) Spacing

Now you have to input the size of the grout gap between tiles. Small gaps also affect tile quantities, so including it gives a more realistic result.

4. Add Optional Box Details

If your tiles are to be sold per box, then enter the number of tiles per box. This will give you a clear picture of how many boxes to buy.

5. Include Price (Optional)

Please enter unit price per tile/box based on your estimation and enter this value below.

6. Calculate and Review Results

Click Calculate to see instantly the number of tiles needed, box number if selected, plus estimated total cost.

Key Formulas Used

Tile Area = Tile Length × Tile Width

This determines the surface area covered by a single tile, forming the basis for all calculations.

Total Tiles = Room Area ÷ Tile Area

The calculator divides the total area by the area of one tile, then adjusts the result to account for grout spacing and layout.

Number of Boxes = Total Tiles ÷ Tiles per Box

When box details are provided, the calculator converts tile count into the number of boxes needed.

Benefits

  • Calculates accurate tile quantities for any space
  • Accounts for grout spacing and layout gaps
  • Supports box-based tile purchasing
  • Provides optional cost estimation
  • Reduces waste and overspending
  • Works for floors, walls, and custom areas

When & Where to Use

  • Home flooring renovations
  • Bathroom and kitchen tiling
  • Commercial construction planning
  • Interior design projects
  • Estimating material costs before purchase
  • Avoiding tile shortages during installation

Who Should Use This Calculator

This is the best calculator for those people who are renovating homes or for the builders themselves. Nevertheless, it may prove to be extremely helpful for anyone seeking to calculate tile purchases in advance of physically going to an outlet for purchases.

Related Calculators

What is this?

A tile calculator helps determine the number of tiles needed for flooring or wall projects. It calculates the exact quantity required based on room dimensions and tile sizes, including waste allowance for cuts and breakage.

How it works

The calculator divides the total room area by individual tile area to determine the base number of tiles needed. It then adds a waste percentage to account for cutting, breakage, and future repairs. Formula: Total Tiles = (Room Area ÷ Tile Area) × (1 + Waste%/100).

Pro Tips

  • Always add 5-15% waste allowance for cuts and breakage
  • Measure rooms carefully and account for irregular shapes
  • Consider tile orientation and pattern requirements
  • Buy extra tiles from the same batch for future repairs
  • Factor in doorways, fixtures, and obstacles in your measurements
  • Consult with professionals for complex layouts and patterns

Frequently Asked Questions

How many extra tiles should I buy?

It is recommended to purchase 5–10% extra tiles to account for cutting, breakage, and future repairs.

Does this calculator include grout spacing?

Yes. The calculator includes grout (gap) spacing when determining the total number of tiles required.

Can I calculate tiles using total area instead of room dimensions?

Yes. You can switch to 'Use Total Area' mode and enter the total surface area directly in your preferred unit.

How accurate is the tile count?

The calculation is area-based and provides an accurate estimate. Actual installation may vary depending on layout, tile pattern, and cutting requirements.

Can I estimate the total project cost?

Yes. You can enter pricing per tile, per box, or per square unit to get an estimated total cost.

What units are supported?

The calculator supports inches, feet, centimeters, meters, and yards for dimensions, and multiple square units for area.

Is this suitable for walls as well as floors?

Yes. This calculator can be used for both wall tiling and floor tiling projects.