55" 4K TV — 80.1 PPI
A 55-inch 4K TV at ~80 PPI relies on viewing distance for perceived sharpness. From 6–8 feet away, 4K looks crisp. As a desk monitor, individual pixels become visible.
At 80 PPI, individual pixels are visible at typical desk distance. This density is common on large TVs and budget monitors — best suited for viewing from several feet away.
Other display configurations
67.8 PPI
65" 4K TV
3840×2160 · 65″ · Standard Desktop
58.7 PPI
75" 4K TV
3840×2160 · 75″ · Standard Desktop
91.8 PPI
24" 1080p Monitor
1920×1080 · 24″ · Standard Desktop
81.6 PPI
27" 1080p Monitor
1920×1080 · 27″ · Standard Desktop
108.8 PPI
27" 1440p Monitor
2560×1440 · 27″ · Standard Desktop
163.2 PPI
27" 4K Monitor
3840×2160 · 27″ · High Density
Calculate any screen's PPI
PPI Calculator
√(W² + H²) ÷ size | PPI ±0.1See the pixel density
—Higher PPI packs more pixels into the same physical area, producing smaller pixels and finer detail.
Frequently Asked Questions
What is the PPI of the 55" 4K TV?
The 55" 4K TV (3840 × 2160 resolution on a 55″ screen) has an exact pixel density of 80.1 PPI with a 0.317 mm dot pitch.
What is the recommended viewing distance for the 55" 4K TV?
Based on standard 20/20 visual acuity, the recommended minimum viewing distance for the 55" 4K TV is 42.9″ / 109.0 cm. At this distance or farther, individual pixels cannot be discerned.
Is the 55" 4K TV considered a Retina display?
No. At 80.1 PPI, the 55" 4K TV does not meet desktop Retina standards (~218 PPI), although it remains comfortable at recommended viewing distances.