20 x 30 Inches to Pixels
20 × 30 inches is 6,000 × 9,000 pixels at 300 DPI, 3,000 × 4,500 pixels at 150 DPI and 1,920 × 2,880 pixels at the 96 PPI screen standard.
Edit any field to convert a different size at the same resolution.
20 × 30 inches in pixels at every common resolution
The pixel count changes with the resolution you are working to — these are the values you are most likely to need.
| Resolution | Width × height in pixels | Typical use |
|---|---|---|
| 72 DPI | 1,440 × 2,160 | Legacy web |
| 96 DPI | 1,920 × 2,880 | Screen and CSS |
| 150 DPI | 3,000 × 4,500 | Posters and drafts |
| 300 DPI | 6,000 × 9,000 | Photo and magazine print |
| 600 DPI | 12,000 × 18,000 | Fine art and line work |
How the conversion works
Pixels are found by multiplying the length in inches by the pixel density: pixels = inches × DPI. For 20 × 30 inches at 300 DPI that is 20 × 300 = 6,000 and 30 × 300 = 9,000.
The proportions reduce to 2:3.
A print at this size is read from a metre or two, where 150 DPI is indistinguishable from 300, which puts it at 6,000 × 9,000 pixels at 300 DPI and 3,000 × 4,500 at 150.
That works out at 54 megapixels at 300 DPI, or 13.5 megapixels at 150 DPI. In metric the same size is 50.8 × 76.2 cm.
Frequently asked questions
How many pixels is 20 × 30 inches?
6,000 × 9,000 pixels at 300 DPI, 3,000 × 4,500 at 150 DPI and 1,920 × 2,880 at the 96 PPI screen standard. Multiply the inches by whichever density you are working to.
How many pixels is 20 × 30 inches at 300 DPI?
6,000 × 9,000 pixels. That is the standard density for photographic and magazine printing.
What is 20 × 30 inches in centimetres?
50.8 × 76.2 cm, because one inch is exactly 2.54 centimetres.
Does this size really need 300 DPI?
Usually not. Something this size is read from about a metre away, and at that distance 150 to 200 DPI is indistinguishable from 300. That is 3,000 × 4,500 pixels rather than 6,000 × 9,000 — a quarter of the file for no visible loss.
Is 20 × 30 a 2:3 ratio?
Yes, and 2:3 is the shape of a 4 × 6 print, so it fills one edge to edge with nothing cropped.
Why does the pixel count change with DPI?
A pixel has no fixed physical size. The DPI value says how many pixels fill one inch, so raising it raises the pixel count needed to cover the same physical space.