55 vs 75 Inch TV: Size Comparison to Scale
A 75-inch TV has 86% more screen area than a 55-inch one. Side by side, that's 44.3 cm more width and 24.9 cm more height. The picture below shows both screens in true relative scale.
Both screens drawn to the same scale, aligned at the bottom-left corner.
| Parameter | 55″ cm | 55″ in | 75″ cm | 75″ in | Δ |
|---|---|---|---|---|---|
| Width | 121.8 cm | 47.9 in | 166.0 cm | 65.4 in | +36% |
| Height | 68.5 cm | 27.0 in | 93.4 cm | 36.8 in | +36% |
| Area | 8339 cm² | 1293 in² | 15507 cm² | 2404 in² | +86% |
The difference in numbers
The 75″ screen is 44.3 cm wider (+36%) and 24.9 cm taller (+36%) than the 55″ screen. You would need about 1.9 screens of 55″ to cover the area of one 75″ screen.
Recommended viewing distance
55″: 1.67 m – 2.27 m (5.5 ft – 7.5 ft)
75″: 2.28 m – 3.10 m (7.5 ft – 10.2 ft)
Questions about 55″ vs 75″
How much wider is a 75″ screen?
A 75″ screen is 44.3 cm wider than a 55″ one at this aspect ratio.
What viewing distance do I need for 75″?
For a 75″ screen the recommended viewing distance is about 2.28 m – 3.10 m (7.5 ft – 10.2 ft).
Are these numbers exact?
They're calculated directly from the diagonal and aspect ratio using standard geometry, so they're exact for that ratio — real panels can vary by a few millimetres.