65 vs 80 Inch TV: Size Comparison to Scale
A 80-inch TV has 51% more screen area than a 65-inch one. Side by side, that's 33.2 cm more width and 18.7 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 | 65″ cm | 65″ in | 80″ cm | 80″ in | Δ |
|---|---|---|---|---|---|
| Width | 143.9 cm | 56.7 in | 177.1 cm | 69.7 in | +23% |
| Height | 80.9 cm | 31.9 in | 99.6 cm | 39.2 in | +23% |
| Area | 11647 cm² | 1805 in² | 17643 cm² | 2735 in² | +51% |
The difference in numbers
The 80″ screen is 33.2 cm wider (+23%) and 18.7 cm taller (+23%) than the 65″ screen. You would need about 1.5 screens of 65″ to cover the area of one 80″ screen.
Recommended viewing distance
65″: 1.98 m – 2.69 m (6.5 ft – 8.8 ft)
80″: 2.43 m – 3.30 m (8.0 ft – 10.8 ft)
Questions about 65″ vs 80″
How much wider is a 80″ screen?
A 80″ screen is 33.2 cm wider than a 65″ one at this aspect ratio.
What viewing distance do I need for 80″?
For a 80″ screen the recommended viewing distance is about 2.43 m – 3.30 m (8.0 ft – 10.8 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.