A4 Paper Size Dimensions
Universal international document standard for office printing, stationery, and publications.
Actual Size Screen Preview
Interactive ToolEnsure your screen is calibrated to view true 1:1 scale dimensions.
A4 Dimensions in Pixels (Resolution Guide)
When creating print templates or graphics for A4 export, select your pixel dimensions based on target output:
| Resolution (DPI / PPI) | Pixel Dimensions (W × H) | Megapixels | Use Case |
|---|---|---|---|
| 72 DPI | 595 × 842 px | 0.5 MP | Low-res web preview, email attachments |
| 96 DPI | 794 × 1123 px | 0.89 MP | Standard CSS web page rendering |
| 150 DPI | 1240 × 1754 px | 2.17 MP | Draft office printing, digital presentations |
| 300 DPI | 2480 × 3508 px | 8.70 MP | Commercial publication, flyers, brochures |
| 600 DPI | 4960 × 7016 px | 34.8 MP | Archival art printing, fine line vector proofs |
A4 vs. US Letter: Key Differences
A4 is the standard in more than 140 countries, whereas US Letter (8.5 × 11.0 in) is used predominantly in the United States and Canada.
- Width comparison: US Letter is 5.9 mm (0.23 in) wider than A4.
- Height comparison: A4 is 17.6 mm (0.69 in) taller than US Letter.
- Total surface area: A4 has an area of 62,370 mm², while US Letter has 60,309 mm² (A4 is approximately 3.4% larger).
Frequently Asked Questions
What are the dimensions of A4 paper in millimeters, centimeters, and inches?
Standard A4 paper measures 210 × 297 millimeters, 21.0 × 29.7 centimeters, or 8.27 × 11.69 inches.
How many pixels is A4 paper at 300 DPI?
At 300 DPI (high-resolution commercial print quality), an A4 sheet is 2480 × 3508 pixels. At 96 DPI (standard CSS screen density), it is 794 × 1123 pixels.
What is the difference between A4 and US Letter?
US Letter (215.9 × 279.4 mm) is 5.9 mm wider than A4, while A4 (210 × 297 mm) is 17.6 mm taller than US Letter. Printing A4 documents on US Letter paper can cut off headers or footers unless scaled to fit.
Can I use an A4 sheet to calibrate my computer screen ruler?
Yes. Hold a physical A4 sheet against your monitor. The width should measure exactly 21.0 cm on a properly calibrated screen ruler.