A 34-inch monitor measures 31.3 inches wide and 13.4 inches high (79.4 × 34 cm) of actual screen area, based on a 21:9 aspect ratio. The 34-inch figure is the diagonal, not the width.
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Screen measurements calculated from the 34-inch diagonal at a 21:9 aspect ratio.
| Measurement | Imperial | Metric |
|---|---|---|
| Diagonal (screen size) | 34 in | 86.4 cm |
| Screen width | 31.3 in | 79.4 cm |
| Screen height | 13.4 in | 34 cm |
| Aspect ratio | 21:9 | 2.33:1 |
| Screen area | 418.6 sq in | 2700.3 cm² |
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| Resolution | Pixels | Pixel Density |
|---|---|---|
| UWQHD | 3440 × 1440 | 110 PPI |
Calculated from the 31.3-inch screen width using published viewing-angle standards.
| Standard | Viewing Angle | Distance | Best For |
|---|---|---|---|
| THX (immersive) | 40° | 3 ft 7 in (42.9 in / 109 cm) | Movies, home theatre |
| SMPTE (reference) | 30° | 4 ft 10 in (58.3 in / 148.1 cm) | Mixed viewing, living rooms |
| Comfortable range | 30–40° | 3 ft 7 in – 4 ft 10 in | Most rooms |
| Check | Requirement | Notes |
|---|---|---|
| Overall width (with bezel) | ≈ 31.9 in (80.9 cm) | Slim-bezel panels add roughly 0.3–0.8 in total |
| Minimum desk width (single) | 39.3 in | Leaves room for peripherals either side |
| Dual-monitor desk width | 67.7 in | Two panels side by side plus a small gap |
| Minimum desk depth | 25.8 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 34 in |
|---|---|---|---|
| 32 in | 27.9 × 15.7 in | 437.6 sq in | +5% screen area |
| 34 in (this size) | 31.3 × 13.4 in | 418.6 sq in | — |
| 38 in | 34.9 × 15 in | 522.8 sq in | +25% 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 31.3 inches (79.4 cm) wide at a 21:9 aspect ratio. With bezels, the overall width is usually around 31.9 inches.
A desk of at least 39.3 inches wide comfortably fits a single 34-inch monitor with keyboard and mouse space. For two of them, plan on about 67.7 inches.
Roughly 3 ft 7 in to 4 ft 10 in. For desk work, most people settle near arm's length, which also reduces eye strain.
The panel is 13.4 inches (34 cm) tall. Add stand height, typically 6–10 inches, for the full desk footprint.
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