13.3-inch screen dimensions
11.6 × 6.5 inches
29.4 × 16.6 cm · 294 × 166 mm · 16:9 · Laptop 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 13.3-inch measurement produces a screen 2.2 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 | 11.6 in / 29.4 cm | 6.5 in / 16.6 cm | 76 in² |
| 16:10 — taller than widescreen, common on laptops and design monitors | 11.3 in / 28.6 cm | 7.0 in / 17.9 cm | 80 in² |
| 21:9 — the 34-inch class ultrawide, actually 43:18 | 12.3 in / 31.2 cm | 5.1 in / 13.0 cm | 63 in² |
| 4:3 — the pre-widescreen shape, still used by projectors and older panels | 10.6 in / 27.0 cm | 8.0 in / 20.3 cm | 85 in² |
| 32:9 — two 16:9 panels side by side in one screen | 12.8 in / 32.5 cm | 3.6 in / 9.1 cm | 46 in² |
How it compares by area
A diagonal is a length, so a step up sounds smaller than it is: this is the smallest size here, and the next size up, 14 inches, is another 11% again.
| Size | Width | Screen area | vs 13.3-inch |
|---|---|---|---|
| 14 in | 12.2 in | 84 in² | +11% |
| 15.6 in | 13.6 in | 104 in² | +38% |
| 16 in | 13.9 in | 109 in² | +45% |
| 17 in | 14.8 in | 123 in² | +63% |
| 19 in | 16.6 in | 154 in² | +104% |
| 21.5 in | 18.7 in | 198 in² | +161% |
| 22 in | 19.2 in | 207 in² | +174% |
| 24 in | 20.9 in | 246 in² | +226% |
Pixel density at 13.3-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 13.3-inch | |
|---|---|---|
| Full HD (1920×1080) | 166 PPI | Sharp at desk distance |
| QHD (2560×1440) | 221 PPI | Very high — the interface will be scaled |
| 4K UHD (3840×2160) | 331 PPI | Very high — the interface will be scaled |
| 8K UHD (7680×4320) | 663 PPI | Very high — the interface will be scaled |
Frequently asked questions
How wide is a 13.3-inch screen?
A 13.3-inch 16:9 screen is 11.6 inches (29.4 cm) wide and 6.5 inches (16.6 cm) tall. The diagonal alone does not fix the width — a 13.3-inch 4:3 screen is 10.6 inches wide instead.
What are the dimensions of a 13.3-inch TV in cm?
29.4 × 16.6 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 13.3-inch screen much bigger than a -inch one?
This is the smallest size listed here.
What resolution should a 13.3-inch screen be?
Pixel density decides that: Full HD gives 166 PPI, QHD gives 221 PPI, 4K UHD gives 331 PPI, 8K UHD gives 663 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.