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A Comprehensive Guide to Tile Size Conversions

By Tileswale

Any construction and renovation project is incomplete without this basic necessity. The right-sized tiles make the place balanced visually, but minimize the material wastage while installing it. In this regard, to make adequate installation of tiles with no erroneous expenditure, a proper understanding of tile size and conversion between metric and imperial measurement systems is vital. In this section, we will include everything from the common tile sizes to the large-format slabs and guide you to choose and convert tile sizes for any project.

Comprehensive Tile Size Reference Guide

To make it easier to convert tile size, here is a comprehensive list of common tile sizes in millimeters (mm), centimeters (cm), feet (ft), and inches (in). This guide covers standard square tiles, rectangular tiles, plank-style tiles, mosaic tiles, and large-format slab sizes.

Square Tiles:

1. 300 mm x 300 mm (30 cm x 30 cm)

  • Feet: 1 ft x 1 ft
  • Inches: 12 in x 12 in

2. 400 mm x 400 mm (40 cm x 40 cm)

  • Feet: 1.31 ft x 1.31 ft
  • Inches: 16 in x 16 in

3. 600 mm x 600 mm (60 cm x 60 cm)

  • Feet: 2 ft x 2 ft
  • Inches: 24 in x 24 in

4. 1200 mm x 1200 mm (120 cm x 120 cm)

  • Feet: 4 ft x 4 ft
  • Inches: 48 in x 48 in

5. 800 mm x 800 mm (80 cm x 80 cm)

  • Feet: 2.5 ft x 2.5 ft
  • Inches: 32 in x 32 in

Rectangular Tiles:

1. 200 mm x 1200 mm (20 cm x 120 cm)

  • Feet: 0.66 ft x 4 ft
  • Inches: 8 in x 48 in

2. 300 mm x 450 mm (30 cm x 45 cm)

  • Feet: 1 ft x 1.5 ft
  • Inches: 12 in x 18 in

3. 300 mm x 600 mm (30 cm x 60 cm)

  • Feet: 1 ft x 2 ft
  • Inches: 12 in x 24 in

4. 300 mm x 1200 mm (30 cm x 120 cm)

  • Feet: 1 ft x 4 ft
  • Inches: 12 in x 48 in

5. 600 mm x 900 mm (60 cm x 90 cm)

  • Feet: 2 ft x 3 ft
  • Inches: 24 in x 36 in

6. 600 mm x 1200 mm (60 cm x 120 cm)

  • Feet: 2 ft x 4 ft
  • Inches: 24 in x 48 in

7. 800 mm x 1200 mm (80 cm x 120 cm)

  • Feet: 2.5 ft x 4 ft
  • Inches: 32 in x 48 in

8. 800 mm x 1600 mm (80 cm x 160 cm)

  • Feet:  2.5 ft x 5.25 ft
  • Inches: 32 in x 64 in

9. 800 mm x 2400 mm (80 cm x 240 cm)

  • Feet:  2.5 ft x 8 ft
  • Inches: 32 in x 96 in

10. 800 mm x 3000 mm (80 cm x 300 cm)

  • Feet:  2.5 ft x 10 ft
  • Inches: 32 in x 120 in

11. 1200 mm x 1800 mm (120 cm x 180 cm)

  • Feet: 4 ft x 6 ft
  • Inches: 48 in x 72 in

12. 1200 mm x 2400 mm (120 cm x 240 cm)

  • Feet: 4 ft x 8 ft
  • Inches: 48 in x 96 in

13. 1200 mm x 3600 mm (120 cm x 360 cm)

  • Feet: 4 ft x 12 ft
  • Inches: 48 in x 144 in

Plank-Style Tiles:

1. 150 mm x 600 mm (15 cm x 60 cm)

  • Feet: 0.5 ft x 2 ft
  • Inches: 6 in x 24 in

2. 200 mm x 1000 mm (20 cm x 100 cm)

  • Feet: 0.66 ft x 3.28 ft
  • Inches: 8 in x 39 in

3. 250 mm x 1200 mm (25 cm x 120 cm)

  • Feet: 5/6 ft x 4 ft
  • Inches: 10 in x 48 in

Mosaic Tiles:

1. 25 mm x 25 mm (2.5 cm x 2.5 cm)

  • Feet: 0.08 ft x 0.08 ft
  • Inches: 1 in x 1 in

2. 50 mm x 50 mm (5 cm x 5 cm)

  • Feet: 0.16 ft x 0.16 ft
  • Inches: 2 in x 2 in

Large Tile Slabs:

Square Slabs:

1. 1200 mm x 1200 mm (120 cm x 120 cm)

  • Feet: 4 ft x 4 ft
  • Inches: 48 in x 48 in

2. 1500 mm x 1500 mm (150 cm x 150 cm)

  • Feet: 5 ft x 5 ft
  • Inches: 60 in x 60 in

3. 1600 mm x 1600 mm (160 cm x 160 cm)

  • Feet: 5 ft x 5 ft
  • Inches: 62 in x 62 in

Rectangular Slabs:

1. 1200 mm x 2400 mm (120 cm x 240 cm)

  • Feet: 4 ft x 8 ft
  • Inches: 48 in x 96 in

2. 1200 mm x 3000 mm (120 cm x 300 cm)

  • Feet: 4 ft x 10 ft
  • Inches: 48 in x 120 in

3. 1600 mm x 2400 mm (160 cm x 240 cm)

  • Feet: 5 ft x 8 ft
  • Inches: 62 in x 96 in

4. 1600 mm x 3200 mm (160 cm x 320 cm)

  • Feet: 5 ft x 10.5 ft
  • Inches: 62 in x 126 in

5. 1800 mm x 3600 mm (180 cm x 360 cm)

  • Feet: 6 ft x 12 ft
  • Inches: 72 in x 144 in
Tile Type Tile Size (mm) Tile Size (cm) Tile Size (ft) Tile Size (in)
Square Tiles 300 x 300 mm 30 x 30 cm 1 ft x 1 ft 12 in x 12 in
  400 x 400 mm 40 x 40 cm 1.31 ft x 1.31 ft 16 in x 16 in
  600 x 600 mm 60 x 60 cm 2 ft x 2 ft 24 in x 24 in
  1200 x 1200 mm 120 x 120 cm 4 ft x 4 ft 48 in x 48 in
  800 x 800 mm 80 x 80 cm 2.5 ft x 2.5 ft 32 in x 32 in
Rectangular Tiles 200 x 1200 mm 20 x 120 cm 0.66 ft x 4 ft 8 in x 48 in
  300 x 450 mm 30 x 45 cm 1 ft x 1.5 ft 12 in x 18 in
  300 x 600 mm 30 x 60 cm 1 ft x 2 ft 12 in x 24 in
  300 x 1200 mm 30 x 120 cm 1 ft x 4 ft 12 in x 48 in
  600 x 900 mm 60 x 90 cm 2 ft x 3 ft 24 in x 36 in
  600 x 1200 mm 60 x 120 cm 2 ft x 4 ft 24 in x 48 in
  800 x 1200 mm 80 x 120 cm 2.5 ft x 4 ft 32 in x 48 in
  800 x 1600 mm 80 x 160 cm 2.5 ft x 5.25 ft 32 in x 64 in
  800 x 2400 mm 80 x 240 cm 2.5 ft x 8 ft 32 in x 96 in
  800 x 3000 mm 80 x 300 cm 2.5 ft x 10 ft 32 in x 120 in
  1200 x 1800 mm 120 x 180 cm 4 ft x 6 ft 48 in x 72 in
  1200 x 2400 mm 120 x 240 cm 4 ft x 8 ft 48 in x 96 in
  1200 x 3600 mm 120 x 360 cm 4 ft x 12 ft 48 in x 144 in
Plank-Style Tiles 150 x 600 mm 15 x 60 cm 0.5 ft x 2 ft 6 in x 24 in
  200 x 1000 mm 20 x 100 cm 0.66 ft x 3.28 ft 8 in x 40 in
  250 x 1200 mm 25 x 120 cm 0.82 ft x 4 ft 10 in x 48 in
Mosaic Tiles 25 x 25 mm 2.5 x 2.5 cm 0.08 ft x 0.08 ft 1 in x 1 in
  50 x 50 mm 5 x 5 cm 0.16 ft x 0.16 ft 2 in x 2 in
Square Slabs 1200 x 1200 mm 120 x 120 cm 4 ft x 4 ft 48 in x 48 in
  1500 x 1500 mm 150 x 150 cm 5 ft x 5 ft 60 in x 60 in
  1600 x 1600 mm 160 x 160 cm 5.25 ft x 5.25 ft 63 in x 63 in
Rectangular Slabs 1200 x 2400 mm 120 x 240 cm 4 ft x 8 ft 48 in x 96 in
  1200 x 3000 mm 120 x 300 cm 4 ft x 10 ft 48 in x 120 in
  1600 x 2400 mm 160 x 240 cm 5.25 ft x 8 ft 63 in x 96 in
  1600 x 3200 mm 160 x 320 cm 5.25 ft x 10.5 ft 63 in x 126 in
  1800 x 3600 mm 180 x 360 cm 6 ft x 12 ft 72 in x 144 in
  2000 x 3000 mm 200 x 300 cm 6.5 ft x 10 ft 79 in x 120 in


Understanding Common Tile Sizes for Flooring and Wall

The standard sizes vary for tiles, though some sizes are more commonly used on walls and floors. For example:

  • Small tiles, like 300 mm x 300 mm are often used in small rooms like bathrooms or kitchen backsplashes.

  • Medium tiles are suitable for wide spaces, such as living rooms in sizes up to 600 mm x 600 mm. These provide a look of streamlined sophistication.

  • In open-plan areas, a grout joint free effect can be achieved using large tiles 1200 mm x 1200 mm and minimal grout lines.

Thus, the right size will determine the final output you get with your space - right from grout spacing to visual balance.

Large-Format Tiles and Slabs

Large format tiles and slabs have become very popular with a lot of people, especially in modern house designs. They range from 1200mm x 1200mm to 2000mm x 3000mm that is applied to open spaces such as the living room, commercial space, and even outdoor patios or terraces.

These large tiles:

  • Minimize grout lines for a clean, unbroken surface.

  • Are perfect for areas where you want to emphasize spaciousness.

  • Require a perfectly flat surface for proper installation to avoid cracking.

Tile Size Measurement: Nominal vs. Actual Size

Tile size labels normally refer to the nominal size, or the size that provides for a grout spacing margin. Due to manufacturing processes, however, the real size can be somewhat different.

For instance, what is considered to be a 300mm x 300mm tile might actually only be 298 mm x 298 mm. That kind of discrepancy can make a difference in how you lay out your tiles and may impact the look of grout lines, so check the actual sizes before starting to install.

Tile Size Conversion: Metric to Imperial

Tile dimensions can be listed in metric units (millimeters or centimeters) or imperial units (inches or feet). Converting between these systems is easy using the following key formulas:

  • 1 inch = 25.4 mm
  • 1 foot = 30.48 cm (304.8 mm)

For example, a 600 mm x 600 mm tile can be converted to:

  • 23.62 in x 23.62 in (in inches)
  • 1.97 ft x 1.97 ft (in feet)

Using conversion tools can help you quickly and accurately convert between these systems.

How to Calculate Tile Coverage Area

Understanding the coverage area of each tile size is essential for efficient planning and accurate estimates. Here's how to calculate how many tiles you’ll need for a space:

Steps to Calculate:

  1. Measure the area to be tiled in either square feet or square meters.

  2. Determine the coverage area of one tile, based on its size (see the table below for common sizes).

  3. Divide the total area by the coverage area of one tile to calculate how many tiles you need.

  4. Factor in grout lines and add an additional 10-15% for waste, cuts, and future repairs.

Tile Size and Coverage Areas

Below is a table showing the coverage area per tile in both square feet and square meters for various tile sizes:

Tile Size
(in inches)
Coverage Area per Tile
(in sq. ft.)
Coverage Area per Tile
(in square meters)
12” x 12” 1 sq. ft. 0.093 m²
18” x 18” 2.25 sq. ft. 0.209 m²
12” x 24” 2 sq. ft. 0.186 m²
24” x 24” 4 sq. ft. 0.372 m²
6” x 6” 0.25 sq. ft. 0.023 m²
8” x 8” 0.44 sq. ft. 0.041 m²
12” x 72” 3 sq. ft. 0.278 m²
4” x 12” 0.33 sq. ft. 0.031 m²


Example Calculation:

For instance, if you're tiling a room of 10 square meters with 600 mm x 600 mm tiles (which cover 0.36 m² per tile), you would calculate:

  • Total Area: 10 m²

  • Coverage per Tile: 0.36 m²

  • Tiles Required: 10 m² ÷ 0.36 m² = 28 tiles (approximately)

Don't forget to add 10-15% extra for cuts and waste to ensure you have enough tiles to complete the project smoothly.

Choosing the Right Tile Size for Your Space

The right tile size is the best choice for designing as well as functionality:

  • Large tiles almost reduce the number of grout lines, hence giving a larger look.

  • These small tiles could be used for fancy design and backsplashes for bathroom walls.

  • Plank-style tiles can look similar to hardwood and come in 200 mm x 1200 mm tiles, which can be used in living rooms or bedrooms.

Most Common Tile Sizes in India

Tile sizes may vary depending on their applications in the Indian market: floors, walls, kitchens, and bathrooms. Regular square tiles are those commonly used: 1 x 1 ft (300 x 300 mm), 2 x 2 ft (600 x 600 mm), and larger 3 x 3 ft (900 x 900 mm); these are pretty common use not only throughout the bathroom and kitchen but also in living rooms. Rectangular tiles, like 1 x 2 ft (300 x 600 mm), usually versatile and are used for either floor and wall in areas where longer tiles are beneficial, such as hallways or accent walls. Large tiles, in sizes such as 2 x 4 ft (600 x 1200 mm) and 4 x 4 ft (1200 x 1200 mm), can be ideal for use in living rooms or big open spaces because they provide a uniform, modern look with little grout lines. For patios, terraces, or balconies, tiles which are usually preferred for outdoor space installation are 1 x 1 ft (300 x 300 mm) and 2 x 2 ft (600 x 600 mm) because they are strong and frictioned.

Application Tile Size
(Feet)
Tile Size
(Inches)
Tile Size
(mm)
Description
Square Tiles 1 x 1 ft 12 x 12 in 300 x 300 mm Standard size for floors and walls in bathrooms, kitchens.
1.5 x 1.5 ft 18 x 18 in 450 x 450 mm Suitable for living rooms, hallways, and offices.
2 x 2 ft 24 x 24 in 600 x 600 mm Common in large areas like living rooms, dining rooms.
Rectangular
Tiles
1 x 2 ft 12 x 24 in 300 x 600 mm Great for walls or floors; can be used in herringbone layout.
Floor Tiles 2 x 2 ft 24 x 24 in 600 x 600 mm Regular-sized floor tile for various rooms.
2 x 4 ft 24 x 48 in 600 x 1200 mm Ideal for larger floors, minimal grout lines.
4 x 4 ft 48 x 48 in 1200 x 1200 mm Large format tiles for open spaces like banquet halls.
4 x 8 ft 48 x 96 in 1200 x 2400 mm Perfect for expansive areas with a seamless appearance.
2.5 x 5 ft 32 x 62 in 800 x 1600 mm For spacious living rooms or commercial spaces.
Wall Tiles 2 x 4 ft 24 x 48 in 600 x 1200 mm Large wall tiles for feature walls or living rooms.
2 x 2 ft 24 x 24 in 600 x 600 mm Suitable for mid-sized rooms like kitchens and bedrooms.
1 x 2 ft 12 x 24 in 300 x 600 mm Versatile tiles for walls or accent pieces.
4 x 8 ft 48 x 96 in 1200 x 2400 mm Large-format tiles for open-plan spaces or feature walls.
Bathroom
Tiles
1 x 2 ft 12 x 24 in 300 x 600 mm Common for bathroom walls and floors.
1 x 1 ft 12 x 12 in 300 x 300 mm Ideal for small bathroom floors.
2 x 2 ft 24 x 24 in 600 x 600 mm Larger bathroom tiles for a seamless look.
1 x 1.5 ft 12 x 18 in 300 x 450 mm Mid-sized tiles for shower areas and walls.
2/3 x 1 ft 8 x 12 in 200 x 300 mm Smaller tiles for backsplashes or decorative accents.
Kitchen
Tiles
1 x 2 ft 12 x 24 in 300 x 600 mm Versatile for floors or walls; also used in backsplashes.
2 x 2 ft 24 x 24 in 600 x 600 mm Standard kitchen floor tile for a clean, spacious look.
1 x 1.5 ft 12 x 18 in 300 x 450 mm Ideal for kitchen walls, reducing grout lines.
2 x 4 ft 24 x 48 in 600 x 1200 mm Large format tile for open kitchens and spacious floors.
Living Room
Tiles
2 x 2 ft 24 x 24 in 600 x 600 mm Common for living rooms, providing a balanced appearance.
2.5 x 4 ft 32 x 48 in 800 x 1200 mm Larger tiles for reducing grout lines in open spaces.
2.5 x 5 ft 32 x 62 in 800 x 1600 mm Ideal for expansive living room floors.
3.25 x 3.25 ft 39 x 39 in 1000 x 1000 mm Large square tiles for luxurious living spaces.
Outdoor
Tiles
2 x 2 ft 24 x 24 in 600 x 600 mm Perfect for outdoor patios, terraces, or balconies.
1 x 2 ft 12 x 24 in 300 x 600 mm Ideal for outdoor walls or small balconies.
2/3 x 2 ft 8 x 48 in 200 x 1200 mm Used for pathways, terraces, or outdoor decks.
1 x 1 ft 12 x 12 in 300 x 300 mm Small tiles for outdoor areas that require added traction.


Conclusion

It's really important to understand tile sizes and their application to ensure that your project looks really great and is installed perfectly. Whether you have to apply a small tile for intricate designs or large-format slabs for open spaces, you will save time, labor, and money when you know how to convert tile size and do your coverage calculations.

From this guide, you will learn the right way to choose the appropriate size of any tile for a project and make it look professional all the time.

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