A4 to Pixels Calculator
Convert A4 paper size (210mm × 297mm) to pixels instantly. Get accurate pixel dimensions for web design, print projects, and CSS implementation.
Use the calculator below for custom DPI values and landscape orientation
A4: 210mm × 297mm
Portrait: 210mm (width) × 297mm (height)
210mm × 96DPI ÷ 25.4 = 794px
297mm × 96DPI ÷ 25.4 = 1123px
Dots per inch, standard screen DPI is usually 96
A4 Size in Pixels: Complete Reference Guide
A4 paper (210mm × 297mm or 8.27" × 11.69") is the world's most common paper size. Understanding how to convert A4 to pixels at different DPI/PPI resolutions is crucial for web developers, graphic designers, and print professionals.
A4 Standard Specifications
Physical Dimensions
A4 paper measures exactly 210mm × 297mm (8.27in × 11.69in). This ratio of 1:√2 allows the paper to be folded or cut in half while maintaining the same proportions.
Portrait vs Landscape
Portrait orientation: 210mm wide × 297mm tall. Landscape orientation: 297mm wide × 210mm tall. Our converter supports both orientations for flexible design needs.
Global Standard
Used in over 100 countries worldwide. Understanding A4 to pixel conversion is crucial for international web projects and cross-platform document management.
A4 Pixel Dimensions Quick Reference
| DPI/PPI | Width (px) | Height (px) | Usage |
|---|---|---|---|
| 72 | 595 | 842 | Mac standard, basic web |
| 96 | 794 | 1123 | Windows web standard |
| 150 | 1240 | 1754 | Newspapers, flyers |
| 192 | 1587 | 2245 | Retina displays, 2× screens |
| 300 | 2480 | 3508 | Professional print quality |
| 600 | 4961 | 7016 | High-end printing, large format |
All dimensions shown in portrait orientation (width × height). For landscape, swap the values.
How to Calculate A4 Paper Size in Pixels
Understanding DPI and PPI
DPI (Dots Per Inch)
Used for printing. Determines how many ink dots fit in one inch of printed material. Higher DPI = sharper prints. Standard: 300 DPI for professional printing.
PPI (Pixels Per Inch)
Used for screens. Defines pixel density in digital displays. Higher PPI = sharper images. Standard: 96 PPI for web design, 72 PPI for Mac displays.
Width Calculation
width = 210mm × DPI ÷ 25.4
or
width = 8.27″ × DPI
210mm / 8.27″: A4 width (portrait)
25.4: Millimeters per inch constant
Example: 210 × 96 ÷ 25.4 = 794px
Height Calculation
height = 297mm × DPI ÷ 25.4
or
height = 11.69″ × DPI
297mm / 11.69″: A4 height (portrait)
Landscape: Swap width/height values
Example: 297 × 96 ÷ 25.4 = 1123px
Professional Use Cases for A4 to Pixels Conversion
Real-world applications where our A4 pixel calculator and A4 to pixel conversion are essential for professional development and design workflows.
PDF Generation & Document Viewers
Creating web-based PDF generators, invoice systems, and document preview tools that need precise A4 to pixel conversion to match standard A4 paper dimensions for accurate print output. Use our A4 pixel calculator to ensure your documents render correctly.
Applications:
• Online invoice generators
• Report builders
• Document management systems
Print-Ready Web Design
Designing responsive layouts that maintain A4 proportions for print stylesheets requires accurate A4 size in pixels calculations. Our calculator helps convert A4 dimensions to pixels, ensuring seamless transition from screen to paper without layout breaks.
Use Cases:
• Print-friendly article layouts
• CSS @media print styles
• Business letter templates
Responsive Document Templates
Building adaptive document templates for resumes, cover letters, and business documents requires knowing the exact A4 paper size in pixels. Our A4 to pixels calculator helps templates scale properly across different screen sizes while maintaining correct A4 proportions.
Templates:
• Resume builders
• Business proposals
• Contract generators
How to Use the A4 to Pixels Calculator
Simple step-by-step guide to use our A4 pixel calculator and convert A4 paper size to pixels for your web projects.
Set DPI
Choose the DPI value based on your target medium. Use 96 DPI for web, 300 DPI for print, or match your device's DPI.
Select Orientation
Choose Portrait (vertical) for standard documents or Landscape (horizontal) for wide layouts and presentations.
View Results
Instantly see width and height in pixels. The conversion happens automatically as you adjust settings.
Copy Pixel Values
Click to copy the calculated A4 pixel dimensions (width, height, or both) to your clipboard for easy use in your CSS or design tools.
Frequently Asked Questions About A4 to Pixels Conversion
Common questions about using our A4 pixel calculator and A4 to pixel conversion for web design and print projects.
What is the pixel size of A4 paper at 96 DPI?
At 96 DPI (standard web resolution), A4 paper converts to 794 × 1123 pixels in portrait orientation, or 1123 × 794 pixels in landscape orientation. This is the most common A4 size in pixels for web-based document layouts. Use our A4 to pixels calculator above to get accurate dimensions for any DPI setting.
Why do I need different DPI values for print vs web?
Web displays typically use 96 DPI (Windows standard) or 72 DPI (Mac standard), while professional printing requires 300 DPI for high-quality output. Higher DPI means more pixels per inch, resulting in sharper images and text when printed.
How do I create A4-sized layouts in CSS?
There are multiple approaches for creating A4 layouts. Here's a complete example with print support:
.a4-page {
width: 794px;
height: 1123px;
margin: 0 auto;
padding: 40px;
box-shadow: 0 0 10px rgba(0,0,0,0.1);
}
/* Alternative: Use physical units */
.a4-page-cm {
width: 21cm;
height: 29.7cm;
}
/* Print styles */
@media print {
@page { size: A4; margin: 0; }
.a4-page {
box-shadow: none;
margin: 0;
page-break-after: always;
}
}
The @page rule with size: A4 is the most reliable method for print layouts.
Can I use these pixel values for responsive design?
Yes, but combine them with responsive techniques like max-width and media queries. For example, use max-width: 794px to ensure the A4 layout scales down on smaller screens while maintaining proportions.
How do I set up A4 size in Photoshop or design software?
When creating a new document in design software, use our A4 pixel calculator to get the exact dimensions. Here are common A4 paper size in pixels settings:
- Photoshop/Illustrator: Set width to 2480px, height to 3508px, resolution to 300 PPI for print
- Figma/Sketch: Use 794 × 1123px for web mockups (96 DPI equivalent)
- For web design: 794 × 1123px at 96 PPI is sufficient
- For professional printing: Always use 2480 × 3508px at 300 DPI
Pro tip: Use our calculator above to convert A4 to pixels for any custom DPI. Set the resolution (DPI/PPI) at the beginning to avoid quality loss from scaling later.
What's the difference between 72 DPI and 96 DPI for web?
72 DPI was the Mac standard, while 96 DPI is the Windows standard and modern web standard. For web design today, 96 DPI (794 × 1123px) is recommended as it matches most Windows displays and is the default for CSS pixel calculations. However, both will display identically on screens - the difference only matters when converting between pixels and physical units.
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