How Big Is a 34 Inch Monitor?
A 34-inch monitor is almost always an ultrawide with a 21:9 aspect ratio, measuring about 31.3 inches wide and 13.4 inches tall. That's wider than a 32-inch 16:9 display but shorter — roughly the same height as a 27-inch standard monitor with 8 extra inches of width bolted onto the sides. This is the most popular ultrawide size and the one most people think of when they hear "ultrawide." It's wide enough to replace a dual-monitor setup for most tasks and immersive enough to make games and movies feel cinematic.
34-Inch Monitor Dimensions by Aspect Ratio
Exact width and height calculated from the 34-inch diagonal at each common aspect ratio.
| Aspect Ratio | Width | Height |
|---|---|---|
| 16:9 | 29.63" (75.27 cm) | 16.67" (42.34 cm) |
| 16:10 | 28.83" (73.23 cm) | 18.02" (45.77 cm) |
| 21:9 | 31.25" (79.38 cm) | 13.39" (34.02 cm) |
| 4:3 | 27.2" (69.09 cm) | 20.4" (51.82 cm) |
Resolution and Pixel Density at 34 Inches
| Resolution | Pixel Density |
|---|---|
| 1080p (Full HD) | 64.8 PPI |
| 1440p (QHD) | 86.4 PPI |
| 4K (UHD) | 129.6 PPI |
Ideal resolution: 3440x1440 (QHD Ultrawide)
At 34 inches ultrawide, 3440x1440 gives you 110 PPI — right in the sweet spot. Text is sharp, UI elements are well-proportioned, and you don't need any Windows scaling. This is effectively the ultrawide equivalent of 27-inch 1440p. The lower-end 2560x1080 resolution at this size only gives you 82 PPI, which looks soft.
Who Should Buy a 34-Inch Monitor?
Productivity power users: The killer app for 34-inch ultrawides is side-by-side multitasking without a bezel in the middle. You can run a full browser and a full document editor side by side, each with more room than they'd have on a single 27-inch monitor.
Immersive gamers: Games that support 21:9 are stunning on a 34-inch ultrawide — the extra peripheral vision in racing games, RPGs, and shooters adds genuine immersion. Not all competitive games support ultrawide though (some lock to 16:9).
Video editors: Timelines stretch beautifully across the extra width. You can see more of your timeline at once, which speeds up editing workflow significantly.
Replacing dual monitors: If you're tired of the bezel gap between two monitors and don't need the full screen space of two 27-inch displays, a 34-inch ultrawide is the most popular single-monitor replacement.
Viewing Distance
Recommended: 28-40 inches (70-100 cm)
Since the height is similar to a 27-inch 16:9, vertical viewing distance is familiar. The width means you'll want to be at least 28 inches back so the far edges of the screen don't require excessive eye movement. Curved ultrawide panels (1500R or 1800R) help by wrapping the edges closer to your line of sight.
Desk Space Requirements
Needs about 32 inches of desk width — measure your desk before buying. Depth of at least 28 inches is recommended, more if the monitor isn't curved. Most 34-inch ultrawides come with large stands; a monitor arm can save significant desk space.
How 34 Inches Compares to Other Sizes
vs. smaller monitors: Compared to a 27-inch 16:9, a 34-inch ultrawide offers about 33% more screen area distributed horizontally. You gain width for multitasking but no extra height. Compared to a 29-inch ultrawide, the 34-inch is 40% larger with a much sharper resolution — it's a different class of display.
vs. larger monitors: A 38-inch ultrawide gives you 25% more area and the same 21:9 format — great if you want the ultrawide experience at a bigger scale. A 49-inch super ultrawide (32:9) is equivalent to two 27-inch monitors and is the next dramatic jump up.
Buying Advice
Get 3440x1440, not 2560x1080 — the resolution difference at 34 inches is very visible. Curved panels (1500R) are strongly recommended at this width to reduce the distortion at the edges. For gaming, look for 144Hz+ with adaptive sync. Check that your favorite games actually support 21:9 before committing.
Compare 34-Inch Monitors
See how a 34-inch monitor looks next to other sizes on a virtual desk.