As technology continues to advance, televisions are constantly being improved to offer larger screens and better quality. If you've recently upgraded to a newer TV model, you might be interested in learning the best way to measure its screen size. Fortunately, measuring a TV is straightforward and only takes a few seconds. Simply stretch a measuring tape from one corner of the screen to the opposite corner to verify the manufacturer's provided dimensions. If you want to ensure the TV fits your cabinet, shelf, or wall space, measuring its width, height, and depth will help you confirm it's a perfect fit for your desired setup.
Steps
Measure the TV's dimensions

- Here are some common TV sizes based on diagonal measurements: 24 in (61 cm), 28 in (71 cm), 32 in (81 cm), 42 in (110 cm), 48 in (120 cm), and 60 in (150 cm).
- You can also find TVs with screens as large as 72 in (180 cm) or even bigger.
Tip: Only measure the screen size, excluding the bezel or frame around the outer edges of the screen.

- For example, a 60 in (150 cm) TV typically has an actual width of 52.3 in (133 cm).
- The width measurement is crucial, as it determines whether the TV will fit on your wall, cabinet, or shelf.

- A 48 in (120 cm) TV with a 42 in (110 cm) screen width will have a height of around 25–27 in (64–69 cm).
- While height is generally less critical than width, it still plays a role in determining the ideal placement for your TV.

- Knowing the depth ensures the TV will fit into your cabinet or shelf.
- TV designs are constantly evolving to save space. Many modern flat-screen TVs with stands are less than 10 in (25 cm) deep, and some without stands are as slim as 3 in (7.5 cm).
Ensure the TV fits the installation space

- For the most accurate results, round up the measurements to the nearest 1/2 inch (1.3 cm).
- Record the dimensions of the installation area for easy reference when selecting a new TV.
- You can squeeze a 50 in (130 cm) TV into a 45 in (110 cm) cabinet, but it will look cramped. Opt for a 46 in (120 cm) or 48 in (120 cm) TV for a more spacious look.
- Know the width and height of the TV for wall mounting. If placing it on a shelf or cabinet, also consider the TV's depth.

- For example, if you sit 72 in (180 cm) away, a 60 in (150 cm) TV will provide an optimal viewing experience.
- Alternatively, use an online calculator to determine the best TV size for your space or the ideal viewing distance for the best experience.

- Standard TVs compress images into a square format with a smaller overall area, while widescreen TVs use the extra width to display images in their full, proportional size.
- Standard (4:3) and widescreen TVs may have the same diagonal measurement, but the images will look slightly different.

- If you currently use a 40 in (100 cm) standard TV, you'll need a widescreen TV with at least a 50 in (130 cm) screen to maintain the same 4:3 image size.
Tips
- If you're unsure about affording a specific TV size, explore other models with the same dimensions. A 50 in (130 cm) plasma TV is often more affordable than a 50 in (130 cm) LED flat-screen TV, and standard LED TVs are cheaper than 4K smart TVs.
