29-inch screen dimensions
25.3 × 14.2 inches
64.2 × 36.1 cm · 642 × 361 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 29-inch measurement produces a screen 4.7 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 | 25.3 in / 64.2 cm | 14.2 in / 36.1 cm | 359 in² |
| 16:10 — taller than widescreen, common on laptops and design monitors | 24.6 in / 62.5 cm | 15.4 in / 39.0 cm | 378 in² |
| 21:9 — the 34-inch class ultrawide, actually 43:18 | 26.8 in / 67.9 cm | 11.2 in / 28.4 cm | 300 in² |
| 4:3 — the pre-widescreen shape, still used by projectors and older panels | 23.2 in / 58.9 cm | 17.4 in / 44.2 cm | 404 in² |
| 32:9 — two 16:9 panels side by side in one screen | 27.9 in / 70.9 cm | 7.9 in / 19.9 cm | 219 in² |
How it compares by area
A diagonal is a length, so a step up sounds smaller than it is: moving from 27 inches to 29 adds 2.0 inches of diagonal and 15% more picture, and the next size up, 32 inches, is another 22% again.
| Size | Width | Screen area | vs 29-inch |
|---|---|---|---|
| 21.5 in | 18.7 in | 198 in² | -45% |
| 22 in | 19.2 in | 207 in² | -42% |
| 24 in | 20.9 in | 246 in² | -32% |
| 25 in | 21.8 in | 267 in² | -26% |
| 27 in | 23.5 in | 312 in² | -13% |
| 32 in | 27.9 in | 438 in² | +22% |
| 34 in | 29.6 in | 494 in² | +37% |
| 38 in | 33.1 in | 617 in² | +72% |
Pixel density at 29-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 29-inch | |
|---|---|---|
| Full HD (1920×1080) | 76 PPI | Fine across a room, coarse up close |
| QHD (2560×1440) | 101 PPI | Comfortable at desk distance |
| 4K UHD (3840×2160) | 152 PPI | Sharp at desk distance |
| 8K UHD (7680×4320) | 304 PPI | Very high — the interface will be scaled |
Frequently asked questions
How wide is a 29-inch screen?
A 29-inch 16:9 screen is 25.3 inches (64.2 cm) wide and 14.2 inches (36.1 cm) tall. The diagonal alone does not fix the width — a 29-inch 4:3 screen is 23.2 inches wide instead.
What are the dimensions of a 29-inch TV in cm?
64.2 × 36.1 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 29-inch screen much bigger than a 27-inch one?
By area, 15% bigger. Screens are sold by diagonal, which understates every step: going up 2.0 inches of diagonal here adds 15% of picture.
What resolution should a 29-inch screen be?
Pixel density decides that: Full HD gives 76 PPI, QHD gives 101 PPI, 4K UHD gives 152 PPI, 8K UHD gives 304 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.