How to & Guides

The Size and Dimensions of a 75-Inch TV


When it comes to buying a TV, knowing the dimensions is crucial to ensure it fits properly in your space. In this article, we will discuss the dimensions of a 75-inch TV, including its width, height, and thickness. We will also explore the factors that affect these dimensions and how to calculate them accurately.

How Wide is a 75-Inch TV?

The width of a 75-inch TV can vary depending on the bezel surrounding the screen. The bezel is not included when measuring the dimensions of a TV. Factors such as the TV brand, size, and manufacturer can affect the size of the bezel. For a 75-inch TV, the width is approximately 65.37 inches (166 cm) based on the common 16:9 aspect ratio used to measure TV dimensions. However, it’s important to note that the dimensions may differ slightly depending on the TV model and manufacturer you choose.

How to Calculate TV Dimensions?

Calculating TV dimensions involves considering various aspects:

  1. Aspect Ratio: The aspect ratio refers to the relationship between the height and width of the TV screen. The most common aspect ratio for TVs is 16:9, but there are other options like 4:3 or 21:9.

  2. Diagonal Size: The diagonal size of a TV screen is measured from one corner to the opposite corner.

  3. Height/Width: With the diagonal size and desired aspect ratio, you can calculate the height and width using the following formulas:

  • Height: Diagonal size * (height factor of the aspect ratio) = TV height
  • Width: Diagonal size * (width factor of the aspect ratio) = TV width

For example, for a 75-inch TV with a 16:9 aspect ratio, the dimensions are approximately:

  • Width: 75 * (16 / √(16^2 + 9^2)) = 65.37 inches approx.
  • Height: 75 * (9 / √(16^2 + 9^2)) = 36.77 inches approx.
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Please note that these calculations are for rectangular-shaped TV screens.

What are the Different 75-Inch Dimensions in Different Formats?

1. 75-inch TV Dimensions in Feet

  • Width: 5.5 feet
  • Height: 3.17 feet
  • Depth: 0.17 to 0.34 feet

2. 75-Inch TV Dimensions in Centimeter or CM

  • Width: 167.64 cm
  • Height: 96.52 cm
  • Depth: 5.08-10.16 cm

3. 75-Inch TV Dimensions in Millimeter or MM

  • Width: 1676.4 mm
  • Height: 965.2 mm
  • Depth: 50.8-101.6 mm

Five Important Things to Consider for a 75-Inch TV

1. TV Size

When choosing a 75-inch TV, it’s essential to understand that the advertised size doesn’t represent the actual viewing area accurately. The screen area of a 75-inch TV is approximately 2,508 square inches. Consider the width, height, and depth of the TV, as well as the available wall space or stand.

2. TV Resolution

Take into account the TV resolution for better image clarity and detail. There are multiple resolution options available, so evaluate your preferences and choose wisely.

3. TV Position

Decide whether you want to place the TV on a stand or mount it on the wall. Consider your viewing preferences and the available space in your room to make the right choice.

4. TV Height Stand

Consider the viewing position when determining the TV height stand. The center of the TV screen should be at eye level when seated for a comfortable viewing experience. Adjustable stands and wall mounts offer flexibility in positioning.

5. Room Size

The size of your room plays a significant role in choosing a 75-inch TV. Ensure that the room has enough space to accommodate the TV and allows for comfortable viewing angles. Consider the viewing distance, room layout, furniture placement, and viewing angle when making your decision.

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How Far Should I Sit Away From the TV?

The ideal viewing distance from your TV depends on factors such as screen size and resolution. Sit at a distance where you can comfortably view the entire screen without straining. Refer to the tables below for recommended viewing distances:

  1. For HD (720p and 1080p) TVs:

  2. For 4K Ultra HD TVs:

Is Considering the Size of a Room Important When Investing in a 75-Inch TV?

Yes, it is crucial to consider the size of the room where you plan to set up your 75-inch TV. The room size affects the overall viewing experience and the optimum viewing distance from the TV screen. Keep the following factors in mind:

  1. Viewing Distance: Sit at a distance of approximately 1.5 to 2.5 times the diagonal screen size for optimal viewing. For a 75-inch TV, the suggested viewing distance is about 6.3-9.4 feet.

  2. Room Layout and Furniture Placement: Evaluate your room’s layout and available space to determine the ideal wall or stand measurements for the TV. Ensure comfortable seating arrangements and proper TV height at eye level.

  3. Viewing Angle: Position your TV for a direct viewing angle that doesn’t require straining or excessive tilting for an optimal viewing experience.


Determining the dimensions of a 75-inch TV can initially be challenging due to various aspect ratios and factors. Generally, a 75-inch TV has a width of approximately 65.37 inches when considering a 16:9 aspect ratio. However, it’s important to note that the dimensions may vary depending on the specific manufacturer and model. By considering the aspect ratio, you can estimate the dimensions of a 75-inch TV. For more information about TVs and their dimensions, visit OnSpec Electronic, Inc.

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