Paper size in pixels
A4 Size in Pixels
A4 measures 210 × 297 mm (8.27 × 11.69 in). At 300 DPI an A4 canvas is 2480 × 3508 pixels in portrait orientation.
A4 at 300 DPI: 2480 × 3508 px (landscape 3508 × 2480 px)
At 150 DPI: 1240 × 1754 px · at 72 DPI: 595 × 842 px
A4 pixel dimensions at each DPI
Calculated from the defining millimeter dimensions, rounded to the nearest whole pixel unless stated. “DPI” here means image pixels per inch (PPI), the way most print briefs use it.
| Density | Portrait (nearest) | Landscape (nearest) | Portrait, rounded up | Megapixels |
|---|---|---|---|---|
| 72 DPI | 595 × 842 | 842 × 595 | 596 × 842 | 0.5 |
| 96 DPI | 794 × 1123 | 1123 × 794 | 794 × 1123 | 0.9 |
| 150 DPI | 1240 × 1754 | 1754 × 1240 | 1241 × 1754 | 2.2 |
| 200 DPI | 1654 × 2339 | 2339 × 1654 | 1654 × 2339 | 3.9 |
| 300 DPI | 2480 × 3508 | 3508 × 2480 | 2481 × 3508 | 8.7 |
| 600 DPI | 4961 × 7016 | 7016 × 4961 | 4961 × 7016 | 34.8 |
Calculate a canvas with your own settings
Your dimensions
On your device2,480 × 3,508 pixels
210 × 297 mm at 300 PPI · nearest pixel
- Total pixels
- 8.7 MP
- Width density
- 299.9619 PPI
- Height density
- 300.0108 PPI
Nearest-pixel rounding can fall slightly below the target on one axis. Use Round up when the target is a strict minimum.
This is the canvas size. Changing a file’s PPI metadata alone does not create these pixels.
Calculation details & inputs
| Print width | 210 |
|---|---|
| Print height | 297 |
| Size unit | Millimeters (mm) |
| Target resolution | 300 PPI |
| Pixel rounding | Nearest whole pixel |
| Required width (px) | 2,480 |
|---|---|
| Required height (px) | 3,508 |
| Exact width before rounding (px) | 2,480.314961 |
| Exact height before rounding (px) | 3,507.874016 |
| Effective width PPI | 299.961905 |
| Effective height PPI | 300.010774 |
About A4
A4 is the standard document sheet in most countries outside the United States and Canada. Compared with US Letter it is narrower and taller, so layouts do not swap between them without scaling or clipping.
| Unit | Width × height |
|---|---|
| Millimeters | 210 × 297 |
| Centimeters | 21 × 29.7 |
| Inches | 8.268 × 11.693 |
Rounding the canvas
At 300 PPI the exact width is 2,480.315 pixels and the height 3,507.874 pixels, so a whole-pixel canvas must round. Nearest rounding gives 2480 × 3508; rounding up gives 2481 × 3508, which keeps both axes at or above 300 PPI.
The aspect ratio is 1 : 1.4143, the √2 proportion shared by every A size, so A sizes scale into each other without cropping. Bleed is not included: add your provider’s bleed to each edge before calculating the file size.
Questions about this conversion
What is A4 in pixels at 300 DPI?
2480 × 3508 pixels portrait, or 3508 × 2480 landscape, about 8.7 megapixels.
What is A4 in pixels at 72 or 96 DPI?
At 72 DPI: 595 × 842 px. At 96 DPI: 794 × 1123 px. These low densities suit on-screen previews and document templates rather than photo printing.
Does the page size include bleed or printer margins?
No. These are the nominal finished sheet dimensions. Bleed, safe areas and a printer’s unprintable margins are separate and depend on your provider and device.