43 vs 55 Inch TV: Which Should You Buy?
The 43-inch is the right TV for tight spaces. The 55-inch is the most popular size sold globally. Here is exactly which one fits your room and your viewing distance.
43" vs 55": the numbers
Before anything else, here are the physical facts side by side.
Choose the 43-inch if your viewing distance is under 7 feet or space is genuinely tight. Choose the 55-inch for almost everything else. Most people buying a 43-inch wish they had gone 55 within a year.
How far do you need to sit from each?
The right viewing distance is determined by the THX (36°) and SMPTE (30°) standards. Sit within this range for the best picture experience.
| TV Size | THX Min (ft) | SMPTE Sweet Spot (ft) | Casual Max (ft) | Room Type |
|---|---|---|---|---|
| 43" | 4.8 | 5.9 | 8.5 | Bedroom, kitchen, small apartment |
| 55" | 6.1 | 7.5 | 10.8 | Bedroom, living room, den |
If you are sitting 8 feet away, the 55-inch is clearly better. The 43-inch only wins when the room genuinely constrains you to under 7 feet of viewing distance, such as a small bedroom or a kitchen counter setup.
The overlap zone: Between 6 and 7 feet, either size works. At 6 feet a 43-inch gives a comfortable SMPTE experience. A 55-inch at 6 feet is at the THX immersive end. Both are valid depending on your preference for immersion vs. relaxed viewing.
Which size fits each room
Physical size: will it fit?
Viewing distance aside, the TV has to physically fit your wall, entertainment unit, or mount. Here are the measurements you need.
| Measurement | 43 Inch TV | 55 Inch TV | Difference |
|---|---|---|---|
| Screen width | 37.5" | 47.9" | +10.4" |
| Screen height | 21.1" | 26.9" | +5.9" |
| Typical set width (with bezel) | ~38–39" | ~48–50" | ~10" |
| Screen area | 791 sq in | 1,294 sq in | +64% |
| Typical weight | ~9–12 kg | ~14–18 kg | +50% |
Check your furniture first: If you are placing the TV inside an entertainment unit or alcove, measure the internal width before ordering. A 55-inch TV body is typically 48–50 inches wide and will not fit a unit designed for 43 inches.
Use the TV dimensions chart for exact width, height, and depth measurements by screen size.
Which one should you buy?
Buy the 43-inch if:
- Your viewing distance is consistently under 7 feet
- You need a kitchen, office, or second-room TV
- Budget is the primary constraint
- You are mounting in a tight space or alcove under 40 inches wide
Buy the 55-inch if:
- Your viewing distance is 7 feet or more
- This is a living room or main TV
- You watch movies, sports, or gaming where screen size improves the experience
- You are choosing between the two without a hard space constraint
Recommended TVs in these sizes coming soon.
Not sure about your room distance?
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