34" ultrawide vs 38" ultrawide

The 38-inch ultrawide gives you 23% more screen area.

Dimensions and density

	34" ultrawide	38" ultrawide
Resolution	3440 × 1440	3840 × 1600
Width	31.5 in (80.1 cm)	35.1 in (89.1 cm)
Height	13.2 in (33.5 cm)	14.6 in (37.1 cm)
Screen area	416 in²	513 in² (+23%)
Pixel density	109 PPI	109 PPI
Pixel pitch	0.233 mm	0.232 mm
60 PPD distance	31.5 in (80.0 cm)	31.4 in (79.8 cm)

Desk distance

The 34-inch ultrawide reaches the 60 central pixels-per-degree reference at 31.5 in (80.0 cm) and the 38-inch ultrawide at 31.4 in (79.8 cm). Use the PPD calculator to compare angular pixel density at your own distance. These reference distances do not guarantee that pixels or resolution differences become invisible.

Decided? See current prices for 34-inch ultrawide and 38-inch ultrawide monitors on Amazon.

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Common questions

Is a 38-inch ultrawide monitor better than a 34-inch ultrawide?

For screen space: the 38-inch ultrawide has 23% more area. For sharpness: 109 PPI against 109. Which wins depends on your distance and use; the numbers above make the trade-off concrete.

What is the PPI of a 38-inch ultrawide monitor?

3840 by 1600 pixels across a 38-inch diagonal gives 109 pixels per inch, a pixel pitch of 0.232 mm.

How these measurements are calculated

For a diagonal d and aspect ratio w:h, screen width is d × w / √(w² + h²), and height is d × h / √(w² + h²). Area is width × height; PPI is √(horizontal pixels² + vertical pixels²) / diagonal in inches. Results are rounded for display.

Screen dimensions exclude the frame, feet and stand. Check the manufacturer's measurements for furniture and mounting clearance. A flat-screen viewing angle is 2 × atan(width / (2 × eye-to-screen distance)). The 40° cinema target is a preference, not a requirement; adjust the viewing angle for your room. It is approximately equivalent, for a 16:9 screen, to the distance × 0.835 sizing rule in the THX viewing guide.

The 60 central pixels-per-degree reference is a rule of thumb, not a guarantee that two displays look identical. Eyesight, contrast, source quality and panel technology also matter. Check sharpness at your own viewing distance.

Every number on this page is computed from resolution and diagonal with the DisplayMath screen size calculator. Free, no signup, runs in your browser. Content updated 2026-09-09. Feedback? Email hello@displaymath.com or find us on Instagram. About · Privacy and affiliate disclosure. © 2026 DisplayMath. All rights reserved.