iMac 24" (M3)
Monitors · DCI 4K · 2023
Resolution
4480×2520
Diagonal
23.5"
Pixel density
219ppi
| Resolution | 4480 × 2520 |
|---|---|
| Resolution class | DCI 4K |
| Diagonal | 23.5" |
| Pixel density | 219 ppi |
| Aspect ratio | 16:9 |
| Total pixels | 11,289,600 · 11.3 MP |
| Physical size | 520.2 × 292.6 mm |
| Screen area | 236 in² |
| Pixel pitch | 116.1 µm |
| Pixels vanish at | 39.9 cm |
| Orientation | Landscape |
| Released | 2023 |
How to read this
- Pixel density (ppi) is how many pixels fit in one inch. Resolution alone cannot tell you — you have to divide by the diagonal.
- The same 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV. That is more than double, but a TV is watched from far away, so it does not matter.
- The distance at which pixels vanish comes from one arcminute, the limit of human sight. Once a pixel looks smaller than that, no eye can find the grid.
- Aspect ratio is width and height reduced to the simplest whole numbers. Modern phones are 19.5:9 or 20:9, so 16:9 video leaves black bars on the sides.
Frequently asked questions
Q. What is the iMac 24" (M3) screen resolution?
4480×2520 pixels — 11,289,600 in total, about 11.3 megapixels, which puts it in the DCI 4K class.
Q. What is the pixel density of the iMac 24" (M3)?
219 ppi. That is the diagonal in pixels of a 4480×2520 grid divided by the 23.5" diagonal of the panel, and it makes each pixel about 116.1 micrometres across.
Q. How big is the iMac 24" (M3) screen in millimetres?
520.2 mm wide and 292.6 mm tall, worked out from the 23.5" diagonal and the 16:9 aspect ratio. The visible area is roughly 236 square inches.
Q. How far away do pixels stop being visible on the iMac 24" (M3)?
About 39.9 cm. That is where a pixel subtends less than one arcminute, the limit of human sight — closer than that and the grid starts to show.
Q. What aspect ratio does the iMac 24" (M3) use?
16:9, with the long edge 1.78× the short one. It is wider than it is tall, which suits video and side-by-side documents.
Screens of a similar size
The same diagonal at a different resolution means a different density. 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV.
| Device | Resolution | Diagonal | Density |
|---|---|---|---|
| 24" Full HD monitor | 1920×1080 | 24" | 92 ppi |
| 21.5" Full HD monitor | 1920×1080 | 21.5" | 102 ppi |
| 27" Full HD monitor | 1920×1080 | 27" | 82 ppi |
| 27" QHD monitor | 2560×1440 | 27" | 109 ppi |
| 27" 4K monitor | 3840×2160 | 27" | 163 ppi |
| Apple Studio Display | 5120×2880 | 27" | 218 ppi |
| 27" 5K monitor | 5120×2880 | 27" | 218 ppi |
| DCI 4K on a 27" screen | 4096×2160 | 27" | 172 ppi |