Find the ideal TV size For your home it can be quite a challenge. With so many options available on the market, from small screens to gigantic displays, it's easy to feel overwhelmed. But don't worry, we are here to guide you step by step and help you make the best decision.
Determine the ideal TV size for your home
Before diving into the world of technical specifications, it is crucial Evaluate the space where you plan to place your new television. Take the measurements of the wall or furniture where you will install it, considering both the available width and height. These numbers will be your starting point for determining the maximum screen size you can comfortably accommodate.
What inches in TV dimensions really mean
Televisions are measured in inches, but What does this number really mean? Contrary to what many believe, inches do not refer to the width or height of the screen, but to the diagonal. That is, the distance from the bottom left corner to the top right corner of the screen. Here we leave you a conversion table so you have a clearer idea:
| TV size | Ancho Steak: | High jump | Diagonal in cm | Recommended distance to the sofa |
|---|---|---|---|---|
| 32 inches | 75 cm | 45 cm | 81.28 cm | 1.34 m |
| 40 inches | 90 cm | 50 cm | 101.6 cm | 1.68 m |
| 42 inches | 93 cm | 52 cm | 106.68 cm | 1.76 m |
| 43 inches | 97 cm | 56 cm | 109.22 cm | 1.81 m |
| 48 inches | 108 cm | 63 cm | 121.92 cm | 2 m |
| 49 inches | 110 cm | 64 cm | 123 cm | 2 m |
| 55 inches | 123 cm | 71 cm | 139.7 cm | 2.3 m |
| 60 inches | 134 cm | 77 cm | 152.4 cm | 2.5 m |
| 65 inches | 145 cm | 83 cm | 165.1 cm | 2.7 m |
| 70 inches | 157 cm | 91 cm | 177.8 cm | 2.9 m |
| 75 inches | 168 cm | 95 cm | 190.5 cm | 3.15 m |
| 86 inches | 194 cm | 111 cm | 218.4 cm | 3.6 m |
Optimal viewing distance
Another key factor to consider is the distance from where you plan to watch your TV. Sitting too close can cause eye strain, while sitting too far away will cause you to miss details. A general rule of thumb is to multiply the screen diagonal in inches by 2.5 to get the optimal viewing distance in centimeters. For example, for a 50-inch TV:
- 50 inches x 2.5 = 125cm
This means that the ideal distance to enjoy a 50-inch television is approximately 1.25 meters.
Influence of resolution on the choice of TV size
Screen resolution also plays an important role in choosing the size. The higher the resolution, the closer you can sit without noticing pixelation. Modern televisions come in resolutions Full HD (1920x1080) or 4K Ultra HD (3840x2160). If you opt for a 4K TV, you can sit closer and still enjoy a sharp, detailed picture.
Comparison between screen technologies: OLED vs LED
In addition to size and resolution, it is important to consider the type of TV panel. Currently, the two leading technologies are OLED (Organic Light-Emitting Diode) and LED (Light-Emitting Diode). OLED TVs offer deeper blacks, more vibrant colors, and wide viewing angles, while LEDs are typically brighter and more affordable. Research both options and decide which one best suits your preferences and budget.

Formula to calculate TV size based on viewing distance
Now that you know the key factors, it's time to do some calculations. Use this formula as a guide:
- TV size (inches) = Viewing distance (cm) / 2.5
For example, if you plan to sit 2 meters (200 cm) away, the recommended TV size would be:
- 200cm/2.5 = 80 inches
Of course, this is just a starting point. Adjust the size based on your personal preferences and space limitations.
Aspects to consider before choosing your television
Before making your final decision, consider these additional aspects:
- Vision angle: If you plan to view the TV from different angles, opt for a model with wide viewing angles, such as OLEDs.
- Image quality: Look for televisions with advanced technologies such as HDR (High Dynamic Range) to enjoy more realistic colors and greater contrast.
- Connectivity: Make sure your TV has enough HDMI ports and other connectivity options for your devices.
The perfect TV size is one that fits your space, viewing distance, and personal preferences. With this guide in hand, you are ready to find the ideal companion for your movie and series marathons.
I am Sebastián Vidal, a computer engineer passionate about technology and DIY. Furthermore, I am the creator of tecnobits.com, where I share tutorials to make technology more accessible and understandable for everyone.