Monitor Sizes Chart: Width and Height in Inches and cm
Computer monitor sizes from 14 to 57 inches in one chart: screen width, height and PPI at the usual resolution, in inches and cm, plus which size suits which desk.
The short version: 24-inch is compact, 27-inch is the safe desktop baseline, 32-inch is the large 4K workhorse, 34-inch is the easy ultrawide, 40-inch 5K2K is the serious productivity shape, 45-inch is the immersive middle option, and 49-inch is a dual-monitor replacement.
Diagonal size hides the numbers people actually need
A monitor's diagonal is useful shorthand, but width, height, pixel density, and desk depth decide whether it works. A 34-inch ultrawide and a 32-inch 16:9 display can feel completely different even when the diagonal numbers are close.
Use the diagonal as a starting point, then compare the actual width and height for your desk, arm, speakers, and side displays.
Laptop and small screens: 14 to 17 inches
A 14 to 17-inch screen is usually a laptop or portable monitor. These sizes matter because people want to know how much larger a real desk monitor will feel.
The useful comparisons are 16-inch versus 27-inch, 17-inch versus 24-inch, and laptop screen versus 32-inch 4K monitor.
| Size | Shape | Usual resolution | Width | Height | PPI |
|---|---|---|---|---|---|
| 14 in | 16:10 laptop | 1920 x 1200 | 11.9 in (30.2 cm) | 7.4 in (18.8 cm) | 162 |
| 17 in | 16:9 | 1920 x 1080 | 14.8 in (37.6 cm) | 8.3 in (21.2 cm) | 130 |
| 24 in | 16:9 | 1920 x 1080 | 20.9 in (53.1 cm) | 11.8 in (29.9 cm) | 92 |
| 27 in | 16:9 | 2560 x 1440 | 23.5 in (59.8 cm) | 13.2 in (33.6 cm) | 109 |
| 32 in | 16:9 | 3840 x 2160 | 27.9 in (70.8 cm) | 15.7 in (39.8 cm) | 138 |
| 34 in | 21:9 ultrawide | 3440 x 1440 | 31.4 in (79.7 cm) | 13.1 in (33.3 cm) | 110 |
| 40 in | 21:9 5K2K | 5120 x 2160 | 36.9 in (93.6 cm) | 15.5 in (39.5 cm) | 139 |
| 42 in | 16:9 | 3840 x 2160 | 36.6 in (93.0 cm) | 20.6 in (52.3 cm) | 105 |
| 45 in | 21:9 5K2K | 5120 x 2160 | 41.5 in (105.3 cm) | 17.5 in (44.4 cm) | 123 |
| 49 in | 32:9 super ultrawide | 5120 x 1440 | 47.2 in (119.8 cm) | 13.3 in (33.7 cm) | 109 |
| 57 in | 32:9 dual 4K | 7680 x 2160 | 54.9 in (139.4 cm) | 15.4 in (39.2 cm) | 140 |
Desktop workhorses: 24, 27, and 32 inches
A 24-inch monitor is compact. A 27-inch monitor is the default desk monitor. A 32-inch monitor starts to feel large and benefits from 4K resolution if text clarity matters.
For most people, the real fork is 27-inch 1440p versus 32-inch 4K. One is easier and cheaper; the other gives a bigger canvas and cleaner scaling options.
Power-user sizes: 34, 40, 45, 49, and 57 inches
The larger sizes are about workflow shape. A 34-inch ultrawide adds width. A 40-inch 5K2K adds width and height. A 49-inch super ultrawide replaces two side-by-side monitors. A 57-inch dual-4K panel is a serious desk and GPU commitment.
More from the guides
16:10 vs 21:9 Monitors for Coding and Productivity
A 34-inch 21:9 ultrawide is 8.4 in wider but 0.9 in shorter than a 27-inch 16:10 monitor. See which shape fits coding, documents, and your desk.
32 Inch 4K vs 1440p Monitor
A practical comparison of 32-inch 4K and 32-inch 1440p monitors for text sharpness, gaming, scaling, desk use, and value.
How Much Desk You Actually Need
The measured version of the desk-width question: combined monitor widths, depth, clearance, and when ultrawide actually saves space.
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