How to Choose the Right TV Size

Choosing a new TV is about more than simply picking the biggest screen you can afford. The right TV size depends on the size of your room, how far you sit from the screen, what you use the TV for and how immersive you want your viewing experience to be.

A TV that is too small can make it difficult to see detail, while a screen that is too large for your viewing distance may feel uncomfortable. Fortunately, choosing the right size doesn’t have to be complicated.

In this guide, we’ll explain how TV screen sizes work and how to choose the right TV for your lounge, bedroom, gaming setup or home entertainment space.

1. Understand How TV Screen Sizes Work

When you see a TV advertised as 43-inch, 50-inch, 55-inch, 65-inch, 75-inch or 85-inch, the measurement refers to the diagonal distance from one corner of the screen to the opposite corner.

It does not refer to the width of the TV.

For example, a 55-inch TV is measured diagonally from corner to corner. The actual width and height will be smaller than 55 inches.

This is important when measuring your available space because two TVs with similar screen sizes can have slightly different overall dimensions depending on their design and bezels.

2. How Far Will You Sit From the TV?

One of the most useful things to consider when choosing a TV size is your viewing distance.

The further away you sit, the larger the screen you may want. If you sit closer to the TV, a smaller screen may provide a comfortable viewing experience.

As a general starting point:

These are guidelines rather than strict rules. Your preferred viewing experience, TV resolution and the type of content you watch can all influence the ideal size.

Modern 4K TVs allow viewers to sit relatively close to larger screens while still seeing a sharp, detailed image.

3. What TV Size Is Best for a Lounge?

The lounge is often where people want a more immersive viewing experience, particularly if the TV is used for movies, sport and streaming.

For many average-sized lounges, 55-inch and 65-inch TVs can provide an excellent balance between screen size and viewing comfort.

If your lounge is larger and your seating is further away, a 75-inch or 85-inch TV may be a better choice.

Don’t be afraid of a larger TV simply because you’re used to smaller screens. Modern slim-bezel televisions can look surprisingly unobtrusive even when the screen is large.

4. What TV Size Is Best for a Bedroom?

Bedrooms typically have shorter viewing distances, so a smaller TV may be more appropriate.

A 32-inch, 40-inch or 43-inch TV can work well for many bedrooms.

For a larger bedroom where the viewing position is further from the TV, a 50-inch or 55-inch model may also be suitable.

Consider where you will be sitting or lying when watching and measure the distance to the screen before choosing your size.

5. What TV Size Is Best for Gaming?

For gaming, the right size depends on your setup and how close you sit to the screen.

A 43-inch to 55-inch TV can work well for a desk or smaller gaming area, while a 55-inch, 65-inch or larger TV can create a more immersive experience in a lounge gaming setup.

However, screen size isn’t the only thing gamers should consider.

Look for features such as:

• High refresh rates
• Low input lag
• HDMI 2.1 on compatible models
• Variable Refresh Rate (VRR)
• Auto Low Latency Mode (ALLM)
• 4K resolution

If you’re sitting close to a very large screen, make sure the viewing distance is comfortable.

6. Think About What You Watch

Your viewing habits should also influence your TV size.

Movies and streaming

If you enjoy movies and streaming services, a larger screen can create a more cinematic experience.

A 55-inch or 65-inch 4K TV is a popular choice for home entertainment, while larger rooms can accommodate 75-inch and 85-inch screens.

Sport

Sport can benefit from a larger screen because it makes it easier to follow the action from further away.

A 65-inch or 75-inch TV can be particularly appealing for larger lounges and sports fans.

General TV viewing

If you mainly watch regular TV programmes, news and casual entertainment, you may not need an extremely large screen.

A 43-inch, 50-inch or 55-inch TV may provide more than enough screen space depending on your room.

Gaming

Gamers should consider both screen size and technical specifications. A slightly smaller TV with excellent gaming features may be a better choice than a much larger TV without them.

7. Don’t Forget the TV’s Physical Dimensions

The screen size isn’t the same as the overall size of the television.

Before buying, check the manufacturer’s listed dimensions for:

• Width
• Height
• Depth
• Stand width
• Stand height
• Wall-mount requirements

If you’re placing the TV on a cabinet, make sure the cabinet is wide and strong enough to support it.

Also check the distance between the TV’s feet. Some larger TVs have feet positioned quite far apart, which means the TV may not fit securely on a narrow cabinet.

If you’re wall mounting the TV, check the VESA mounting specifications and make sure your wall and mounting bracket are suitable for the TV’s size and weight.

8. What About 4K Resolution?

Resolution is another reason larger TVs have become increasingly popular.

A 4K UHD TV has a resolution of 3840 × 2160 pixels, providing significantly more detail than Full HD.

Because 4K TVs have so much detail, you can sit relatively close to a larger screen without the picture necessarily looking pixelated.

This makes larger 4K TVs particularly attractive for modern living rooms and home cinema setups.

If you’re buying a 55-inch, 65-inch, 75-inch or larger TV today, 4K is an important specification to consider.

9. Bigger Isn’t Always Better

It can be tempting to buy the biggest TV that fits your budget, but bigger isn’t automatically better.

If your seating is very close to the screen, an oversized TV may feel overwhelming. If your seating is far away, however, a small TV may make it difficult to appreciate the detail.

The goal is to find the right balance between:

Screen size + viewing distance + room size + what you watch + your budget

If you’re unsure, it is often better to measure your viewing distance first and then choose a screen size from there.

10. TV Size Recommendations by Room

As a simple starting point:

Small bedroom

32–43 inches

Ideal for shorter viewing distances and smaller spaces.

Large bedroom

43–55 inches

Suitable when the bed or seating position is further away.

Small or medium lounge

50–65 inches

A versatile range for everyday viewing, streaming and sport.

Large lounge

65–75 inches

A larger screen can provide a more immersive experience when seating is further away.

Large home entertainment area

75–85 inches or larger

Ideal when you have sufficient viewing distance and want a cinematic experience.

Remember that these are general recommendations. Your actual room layout and viewing distance should always be considered.

Frequently Asked Questions

Is a 55-inch TV too big for a small lounge?

Not necessarily. A 55-inch TV can work well in a smaller lounge if your seating distance is suitable. Modern 4K TVs are designed to be viewed relatively close to the screen.

Is a 65-inch TV better than a 55-inch TV?

Not automatically. A 65-inch TV gives you a larger and more immersive picture, but a 55-inch TV may be more suitable if your room or viewing distance is smaller.

How far should I sit from a 65-inch TV?

A useful starting point is around 2.4 to 3 metres, although personal preference, TV resolution and content can affect the ideal viewing distance.

What is the most popular TV size?

There isn’t one universal best size for every household, but 55-inch and 65-inch TVs are popular choices because they offer a good balance between screen size and versatility.

Is a 75-inch TV too big?

A 75-inch TV can work extremely well in a larger lounge or entertainment room. The key is having enough viewing distance and wall or cabinet space.

What size TV is best for a bedroom?

For many bedrooms, 32-inch to 43-inch TVs are suitable. Larger bedrooms with greater viewing distances may comfortably accommodate 50-inch or 55-inch TVs.

What size TV is best for gaming?

For many gaming setups, 43-inch to 65-inch TVs can work well. However, features such as refresh rate, input lag, VRR and HDMI 2.1 can be just as important as screen size.

Should I buy a 4K TV?

For most new medium-to-large TVs, 4K is a sensible choice. It provides excellent detail and is widely available across modern Smart TVs, QLED TVs and UHD TVs.

How do I know if a TV will fit on my TV cabinet?

Check the television’s overall width and the distance between its stand feet. Do not rely on the advertised screen size alone. Your cabinet should be wide enough and strong enough to safely support the TV.

Find Your Perfect TV Size at Brands SA

Choosing the right TV size doesn’t have to be complicated. Start by measuring your viewing distance, consider the size of your room and think about how you use your TV.

Whether you’re looking for a 43-inch TV for a bedroom, a 55-inch or 65-inch TV for the lounge, or a large 75-inch or 85-inch TV for a home entertainment setup, Brands SA offers a range of televisions to suit different rooms, viewing preferences and budgets.

Browse the latest TVs from Brands SA and find the screen size that’s right for your home.