34-inch screen dimensions
29.6 × 16.7 inches
75.3 × 42.3 cm · 753 × 423 mm · 16:9 · Monitor size
Why the diagonal is not enough
Screens are advertised by their diagonal, and a diagonal does not determine width until you also know the shape. The same 34-inch measurement produces a screen 5.5 inches wider at 32:9 than at 4:3. If you are measuring a space, the width is the number that matters.
| Aspect ratio | Width | Height | Screen area |
|---|---|---|---|
| 16:9 — the standard for televisions and most monitors | 29.6 in / 75.3 cm | 16.7 in / 42.3 cm | 494 in² |
| 16:10 — taller than widescreen, common on laptops and design monitors | 28.8 in / 73.2 cm | 18.0 in / 45.8 cm | 520 in² |
| 21:9 — the 34-inch class ultrawide, actually 43:18 | 31.4 in / 79.7 cm | 13.1 in / 33.3 cm | 412 in² |
| 4:3 — the pre-widescreen shape, still used by projectors and older panels | 27.2 in / 69.1 cm | 20.4 in / 51.8 cm | 555 in² |
| 32:9 — two 16:9 panels side by side in one screen | 32.7 in / 83.1 cm | 9.2 in / 23.4 cm | 301 in² |
How it compares by area
A diagonal is a length, so a step up sounds smaller than it is: moving from 32 inches to 34 adds 2.0 inches of diagonal and 13% more picture, and the next size up, 38 inches, is another 25% again.
| Size | Width | Screen area | vs 34-inch |
|---|---|---|---|
| 24 in | 20.9 in | 246 in² | -50% |
| 25 in | 21.8 in | 267 in² | -46% |
| 27 in | 23.5 in | 312 in² | -37% |
| 29 in | 25.3 in | 359 in² | -27% |
| 32 in | 27.9 in | 438 in² | -11% |
| 38 in | 33.1 in | 617 in² | +25% |
| 40 in | 34.9 in | 684 in² | +38% |
| 43 in | 37.5 in | 790 in² | +60% |
Pixel density at 34-inch
The same resolution is sharp on a small screen and coarse on a large one, because sharpness is pixels per inch and the inches are not in the resolution.
| Resolution | Density at 34-inch | |
|---|---|---|
| Full HD (1920×1080) | 65 PPI | Fine across a room, coarse up close |
| QHD (2560×1440) | 86 PPI | Fine across a room, coarse up close |
| 4K UHD (3840×2160) | 130 PPI | Sharp at desk distance |
| 8K UHD (7680×4320) | 259 PPI | Very high — the interface will be scaled |
Frequently asked questions
How wide is a 34-inch screen?
A 34-inch 16:9 screen is 29.6 inches (75.3 cm) wide and 16.7 inches (42.3 cm) tall. The diagonal alone does not fix the width — a 34-inch 4:3 screen is 27.2 inches wide instead.
What are the dimensions of a 34-inch TV in cm?
75.3 × 42.3 cm for the screen itself at 16:9. The cabinet is larger — usually 1 to 3 cm on each side for a modern set, more if it has a bezel — so measure the product rather than the panel when checking whether it fits a space.
Is a 34-inch screen much bigger than a 32-inch one?
By area, 13% bigger. Screens are sold by diagonal, which understates every step: going up 2.0 inches of diagonal here adds 13% of picture.
What resolution should a 34-inch screen be?
Pixel density decides that: Full HD gives 65 PPI, QHD gives 86 PPI, 4K UHD gives 130 PPI, 8K UHD gives 259 PPI. Below about 80 PPI a screen looks coarse at desk distance but is fine across a room, which is why televisions and monitors of the same size are sold at different resolutions.