How to Choose TV Size
Selecting the right TV size isn’t just about picking the largest screen on sale. The ideal television fits your space, matches your viewing distance, and enhances your entertainment experience. In this comprehensive guide, we’ll explain exactly how to measure a TV, how to determine the right screen size for your room, and how screen resolution and layout impact your decision.
Understand How TVs Are Measured
TV sizes are measured diagonally, not horizontally or vertically. When a TV is labeled as 55 inches, that means the screen itself measures 55 inches from the top-left corner to the bottom-right corner.
To measure your current TV or verify a new one:
- Use a tape measure
- Start from one corner of the actual screen (do not include the bezel)
- Measure in a straight line diagonally to the opposite corner
Be sure not to measure the frame or outer body. Only the display size counts.
Compare TV Size to Actual Dimensions
TVs with the same diagonal size can have different height and width depending on their bezel design and stand. Use this chart for reference:
| TV Size | Width (inches) | Height (inches) |
|---|---|---|
| 32" | 28 | 16 |
| 43" | 38 | 22 |
| 50" | 44 | 25 |
| 55" | 48 | 27 |
| 65" | 57 | 32 |
| 75" | 66 | 37 |
| 85" | 74 | 42 |
These measurements refer to 16:9 aspect ratio TVs, which are the most common.
Match TV Size With Viewing Distance
A critical factor in choosing the best TV size is how far you’ll sit from the screen. Sitting too close can make the picture pixelated, while sitting too far makes it feel small.
Ideal Distance Guidelines
Use this quick formula:
TV Size = Viewing Distance (in inches) ÷ 1.6
If you’re sitting 96 inches (8 feet) away:
96 ÷ 1.6 = 60 inches
That means a 55 to 65-inch TV is perfect for an 8-foot distance.
Recommended TV size by viewing distance:
| Viewing Distance | Recommended TV Size |
|---|---|
| 4 to 6 feet | 32" to 43" |
| 6 to 8 feet | 43" to 55" |
| 8 to 10 feet | 55" to 65" |
| 10 to 12 feet | 65" to 75" |
| Over 12 feet | 75" to 85"+ |
Factor In Screen Resolution
Screen resolution determines how sharp your TV picture looks, especially on larger screens. Higher resolution allows you to sit closer without noticing pixels.
Resolution vs Distance Chart
| Resolution | Ideal Distance for 55" TV |
|---|---|
| 720p | 9 to 11 feet |
| 1080p | 7 to 9 feet |
| 4K UHD | 4.5 to 7 feet |
| 8K UHD | 3 to 4.5 feet |
4K TVs are now standard and allow larger sizes in the same space without image loss.
Wall Mount vs TV Stand Placement
Your placement method affects the best screen size.
Wall Mounting
- Saves floor space
- Allows you to go for bigger screens
- Can be placed at optimal eye level (center of the screen should be at eye height when seated)
TV Stand
- Requires clearance space for the stand’s legs
- Might limit TV width
- Can affect ideal screen height if stand is too low
Always measure the available wall or stand space before choosing size.
Measure Your Available Space
Before buying, measure the width and height of the space where you plan to put the TV.
Steps:
- Use a measuring tape to measure the width of the wall or furniture.
- Leave at least 2 inches on each side for ventilation and cable routing.
- Check the height from floor to eye level. The center of the screen should be about 42 inches off the ground when seated.
Consider Field of View for Immersive Experience
Field of view (FOV) is how much of your vision is occupied by the screen. The Society of Motion Picture and Television Engineers (SMPTE) recommends a 30-degree FOV for general viewing.
Use this FOV formula:
TV Size = 0.625 × Viewing Distance
So, for a 10-foot (120 inches) viewing distance:
0.625 × 120 = 75 inches
Choose a screen that fills your vision without forcing head movement.
Choosing Size for Gaming and Sports
Gaming TVs
- Prefer lower input lag
- Closer sitting = better reaction time
- Go with 4K 120Hz panels in 55-65 inch range
Sports & Streaming
- Look for fast refresh rates and larger sizes
- 65 to 75 inches is optimal for shared viewing
- Bigger screens provide stadium-like feel
Smart TV Interface and Size
The larger the screen, the more comfortable the navigation becomes. Many modern smart TVs come with:
- Voice search
- App-based controls
- Split-screen viewing
Choose at least 50 inches for an enjoyable smart TV experience, especially when using features like live sports overlays or streaming menus.
Check Weight and Wall Mount Compatibility
Before wall mounting a large screen:
- Check TV weight (listed in specs)
- Confirm VESA mount compatibility (e.g., 400x400)
- Ensure your wall mount supports both
Mounts must support both weight capacity and bolt pattern.
TV Size for Apartments or Bedrooms
Smaller rooms need more careful selection.
Bedrooms
- 32" to 43" works best
- Ideal for 5-7 feet viewing distance
- Mount on opposite wall or dresser-top
Studio Apartments
- Consider space-saving 43" to 50"
- Avoid oversized screens in close quarters
- Wall mount is highly recommended
TV Size for Living Rooms and Home Theaters
Living Rooms
- 55" to 75" is common
- Match with seating layout
- Choose high contrast displays for brighter rooms
Home Theater Setup
- 75" and above is ideal
- Combine with surround sound systems
- Use blackout curtains to enhance dark-room viewing
Measure Box and Delivery Path
Large TVs require careful delivery:
- Measure doorways, stairs, hallways
- Confirm box size before buying
- Many 75"+ TVs arrive in oversized cartons
Always check delivery clearance for smooth unboxing and setup.
Summary Buying Guide
| Room Type | TV Size Range | Resolution | Notes |
|---|---|---|---|
| Bedroom | 32"–43" | 1080p or 4K | Wall mount ideal |
| Studio Apartment | 43"–50" | 4K | Compact, smart interface |
| Living Room | 55"–75" | 4K or 8K | Best for shared viewing |
| Home Theater | 75"–85"+ | 4K or 8K | Immersive, cinematic scale |
Final Recommendations
- Measure viewing distance and use our chart
- Prioritize 4K resolution or higher
- Match TV size to room dimensions
- Confirm wall mount or stand compatibility
- Think about your primary use: streaming, gaming, movies, or sports
Choose the right TV size and transform your everyday viewing into a premium experience.