A 38-inch monitor measures 34.9 inches wide and 15 inches high (88.7 × 38 cm) of actual screen area, based on a 21:9 aspect ratio. The 38-inch figure is the diagonal, not the width.
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Screen measurements calculated from the 38-inch diagonal at a 21:9 aspect ratio.
| Measurement | Imperial | Metric |
|---|---|---|
| Diagonal (screen size) | 38 in | 96.5 cm |
| Screen width | 34.9 in | 88.7 cm |
| Screen height | 15 in | 38 cm |
| Aspect ratio | 21:9 | 2.33:1 |
| Screen area | 522.8 sq in | 3373.1 cm² |
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| Resolution | Pixels | Pixel Density |
|---|---|---|
| WQHD+ | 3840 × 1600 | 109 PPI |
Calculated from the 34.9-inch screen width using published viewing-angle standards.
| Standard | Viewing Angle | Distance | Best For |
|---|---|---|---|
| THX (immersive) | 40° | 3 ft 12 in (48 in / 121.9 cm) | Movies, home theatre |
| SMPTE (reference) | 30° | 5 ft 5 in (65.2 in / 165.5 cm) | Mixed viewing, living rooms |
| Comfortable range | 30–40° | 3 ft 12 in – 5 ft 5 in | Most rooms |
| Check | Requirement | Notes |
|---|---|---|
| Overall width (with bezel) | ≈ 35.5 in (90.2 cm) | Slim-bezel panels add roughly 0.3–0.8 in total |
| Minimum desk width (single) | 42.9 in | Leaves room for peripherals either side |
| Dual-monitor desk width | 75.1 in | Two panels side by side plus a small gap |
| Minimum desk depth | 28.8 in | Enough to sit back from the screen comfortably |
| Typical VESA mount | 100 × 100 or 200 × 200 mm | Check the model before buying an arm |
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Compare against standard desk dimensions in our desk size guide and standing desk guide.
| Size | Screen (W × H) | Area | vs 38 in |
|---|---|---|---|
| 34 in | 31.3 × 13.4 in | 418.6 sq in | -20% screen area |
| 38 in (this size) | 34.9 × 15 in | 522.8 sq in | — |
| 49 in | 47.2 × 13.3 in | 625.8 sq in | +20% screen area |
Because screen area scales with the square of the diagonal, a small step up in inches is a larger jump in picture size than the numbers suggest.
The panel measures 34.9 inches (88.7 cm) wide at a 21:9 aspect ratio. With bezels, the overall width is usually around 35.5 inches.
A desk of at least 42.9 inches wide comfortably fits a single 38-inch monitor with keyboard and mouse space. For two of them, plan on about 75.1 inches.
Roughly 3 ft 12 in to 5 ft 5 in. For desk work, most people settle near arm's length, which also reduces eye strain.
The panel is 15 inches (38 cm) tall. Add stand height, typically 6–10 inches, for the full desk footprint.
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