A4 (210 × 297 mm) is approximately 2,480 × 3,508 pixels at 300 DPI in portrait orientation. In landscape, the same page is 3,508 × 2,480 pixels. Use the live calculator below if you need A4 at a DPI that is not in the reference table.
A4 (210 × 297 mm): choose a DPI
Required pixel dimensions
Landscape: 3,508 × 2,480 px
Approx. 8.7 MP · calculated from 8.27 × 11.69 in at 300 DPI.
Already have an image? Check its real pixel dimensions and compare them with A4.
Check Your Image| DPI | Portrait (px) | Landscape (px) |
|---|---|---|
| 72 DPI | 595 × 842 | 842 × 595 |
| 96 DPI | 794 × 1,123 | 1,123 × 794 |
| 150 DPI | 1,240 × 1,754 | 1,754 × 1,240 |
| 300 DPI | 2,480 × 3,508 | 3,508 × 2,480 |
| 600 DPI | 4,961 × 7,016 | 7,016 × 4,961 |
Start with the image's actual pixel dimensions, not the DPI label written into the file. For a sharp A4 print at 300 DPI, the practical target is about 2,480 × 3,508 pixels. If your image is 1,240 × 1,754 pixels, it contains enough pixels for roughly 150 DPI at A4 size. Simply changing that file's metadata to 300 DPI does not create the missing pixels.
Use the DPI Checker to inspect the file, then the Print Size Calculator to see the physical size supported by its pixel dimensions at 150, 240, 300, or another target DPI.
A4 is defined in millimeters, not inches. 210 mm is about 8.2677 inches and 297 mm is about 11.6929 inches. At 300 DPI, those values work out to roughly 2,480.3 × 3,507.9 pixels, which are rounded to whole pixels. That is why you may occasionally see a one-pixel difference between A4 conversion tables from different tools even when the underlying physical size is identical.
| A4 use | Practical target | Approx. portrait pixels |
|---|---|---|
| Draft document | 150 DPI | 1,240 × 1,754 px |
| Good general print | 240 DPI | 1,984 × 2,806 px |
| Photo / artwork / professional document | 300 DPI | 2,480 × 3,508 px |
| Specialized high-detail reproduction | 600 DPI | 4,961 × 7,016 px |
300 DPI is a reliable default for A4 material viewed from normal reading distance, but it is not a rule for every workflow. For a broader explanation of print-density targets, see 72 vs. 150 vs. 300 DPI.
A4 (210 × 297 mm) is approximately 2,480 × 3,508 pixels at 300 DPI in portrait orientation, or 3,508 × 2,480 pixels in landscape.
A4 is defined in millimeters, and 210 mm × 297 mm does not convert to a whole number of inches. Pixel dimensions therefore require rounding after multiplying the inch values by the chosen DPI.
300 DPI is a strong default for photo-quality A4 documents and artwork viewed up close. 150 DPI may be sufficient for draft or less demanding prints. The best target depends on the content and viewing distance.
Compare the image's real pixel dimensions with the required A4 dimensions at your target DPI. At 300 DPI, aim for about 2480 × 3508 pixels. If the image has fewer pixels, the effective print resolution will be lower.
A4 is the ISO 216 size of 210 × 297 mm and is used across most of the world. North America commonly uses Letter size instead, which is 8.5 × 11 inches.
