Formula: Width px = 105 × (DPI ÷ 25.4) • Height px = 148 × (DPI ÷ 25.4)
A6 Paper Size in Pixels — Complete Guide to Dimensions and Resolution
Understanding the exact pixel dimensions of A6 paper is essential for designers, photographers, and anyone working with small-format print materials. Whether you're creating postcards, flyers, invitations, or digital artwork, knowing the precise A6 size in pixels at various resolutions ensures your work looks professional and prints perfectly.
📐 What is A6 Paper Size?
A6 is a standard paper size defined by the ISO 216 international standard. It measures 105 × 148 mm (4.13 × 5.83 inches). A6 is commonly used for:
- Postcards and greeting cards — The perfect size for standard postcards and invitations
- Flyers and promotional materials — Small, cost-effective marketing pieces
- Photo prints — Popular for small photo enlargements (approx. 4×6 inches)
- Notebooks and notepads — Ideal for pocket-sized notebooks
- RSVP cards — Commonly used for event reply cards
- Business cards — In some regions, A6 is used for larger business cards
The A6 size is part of the A-series paper sizes, where each size is half the previous one. A6 is half of A5 and twice the size of A7.
📊 A6 Size in Pixels at Common Resolutions
The pixel dimensions of A6 depend entirely on the resolution (DPI/PPI). Here's a quick reference for common DPI values:
| Resolution (DPI) | Width (px) | Height (px) | Total Pixels | Use Case |
|---|---|---|---|---|
| 72 DPI | 298 | 420 | 0.13 MP | Web display / Screen |
| 96 DPI | 397 | 559 | 0.22 MP | Standard screen |
| 150 DPI | 620 | 874 | 0.54 MP | Low-quality print |
| 200 DPI | 827 | 1,165 | 0.96 MP | Basic print quality |
| 250 DPI | 1,033 | 1,457 | 1.5 MP | Good print quality |
| 300 DPI | 1,240 | 1,748 | 2.2 MP | Professional print |
| 350 DPI | 1,447 | 2,039 | 3.0 MP | High-quality print |
| 400 DPI | 1,654 | 2,331 | 3.9 MP | Premium print |
| 600 DPI | 2,480 | 3,496 | 8.7 MP | Professional photography |
| 1200 DPI | 4,961 | 6,992 | 34.7 MP | High-resolution scanning |
🧮 How to Calculate A6 Size in Pixels
The formula to convert A6 paper size (105 × 148 mm) to pixels is simple:
🔢 Conversion Formula
Width in pixels: Width (px) = 105 × (DPI ÷ 25.4)
Height in pixels: Height (px) = 148 × (DPI ÷ 25.4)
Total pixels (megapixels): MP = (Width × Height) ÷ 1,000,000
Example: At 300 DPI: Width = 105 × (300 ÷ 25.4) = 1,240 px | Height = 148 × (300 ÷ 25.4) = 1,748 px
The constant 25.4 is the number of millimeters in one inch, which converts mm to inches before multiplying by the DPI value.
📄 Comparison: A6 vs Other Paper Sizes
Understanding how A6 compares to other paper sizes helps you choose the right format for your project:
📊 A-Series Sizes
A0: 841 × 1189 mm (33.1 × 46.8 in)
A1: 594 × 841 mm (23.4 × 33.1 in)
A2: 420 × 594 mm (16.5 × 23.4 in)
A3: 297 × 420 mm (11.7 × 16.5 in)
A4: 210 × 297 mm (8.3 × 11.7 in)
A5: 148 × 210 mm (5.8 × 8.3 in)
A6: 105 × 148 mm (4.1 × 5.8 in)
A7: 74 × 105 mm (2.9 × 4.1 in)
📊 Common Comparisons
4×6 Photo: 102 × 152 mm (close to A6)
Standard Postcard: 100 × 150 mm (similar to A6)
Business Card: 85 × 55 mm (1/4 of A6)
Passport Photo: 51 × 51 mm
DL Envelope: 110 × 220 mm
US Letter: 216 × 279 mm
🖨️ A6 Size for Printing — Resolution Recommendations
Choosing the right resolution for printing A6 depends on viewing distance and print quality requirements:
Postcards & Invitations
Recommended: 300 DPI
At 300 DPI: 1,240 × 1,748 px
Perfect for high-quality postcards, greeting cards, and invitations that will be held in hand.
Flyers & Promo Materials
Recommended: 200-300 DPI
At 200 DPI: 827 × 1,165 px
At 300 DPI: 1,240 × 1,748 px
Suitable for promotional flyers and marketing materials.
Digital Display / Web
Recommended: 72-96 DPI
At 72 DPI: 298 × 420 px
At 96 DPI: 397 × 559 px
Ideal for digital presentations, web graphics, and social media images.
Photo Prints
Recommended: 300-600 DPI
At 300 DPI: 1,240 × 1,748 px
At 600 DPI: 2,480 × 3,496 px
Perfect for high-quality photo prints and small enlargements.
📊 A6 Size in Different Units
🔄 How to Use This A6 Pixel Size Tool
- Enter the resolution in DPI (dots per inch) or PPI (pixels per inch) in the input field.
- Click "Calculate" or press Enter to get instant pixel dimensions.
- View all results: The tool shows width, height, total megapixels, and the paper size.
- Use the reference table for quick lookups at common resolutions.
- Share our tool with fellow designers, printers, or anyone working with A6 paper size.
❓ Frequently Asked Questions
A: At 300 DPI, A6 measures 1,240 × 1,748 pixels (2.2 megapixels). This is the standard resolution for professional quality printing of postcards and small prints.
A: For web and screen use (72 DPI), A6 measures 298 × 420 pixels. At 96 DPI, it's 397 × 559 pixels.
A: For professional print quality, use 300 DPI (1,240 × 1,748 px). For flyers and less critical prints, 200 DPI is sufficient.
A: Yes, A6 is twice the size of A7. A6 is 105 × 148 mm, while A7 is 74 × 105 mm.
A: A6 has an aspect ratio of 1:√2 (approximately 1:1.414). This is the standard aspect ratio for all A-series paper sizes.
A: A6 at 300 DPI is 1,240 × 1,748 = 2,167,520 pixels, or approximately 2.2 megapixels.
A: A6 paper size is 105 × 148 millimeters, or 10.5 × 14.8 centimeters.
A: A6 is 4.13 × 5.83 inches, which is very close to 4×6 inches (101.6 × 152.4 mm). They are nearly identical in practice.
📈 Common Misconceptions About A6 and Small Paper Sizes
- Misconception: "A6 has a fixed pixel size" — Fact: Pixel size depends entirely on DPI/PPI. A6 is always 105 × 148 mm, but pixel dimensions vary with resolution.
- Misconception: "Higher DPI always means better quality" — Fact: While higher DPI provides more detail, for small prints like A6, 300 DPI is usually sufficient; higher DPI may not be visible.
- Misconception: "A6 is the same as 4×6" — Fact: A6 is 105 × 148 mm (4.13 × 5.83 in), while 4×6 is 101.6 × 152.4 mm. They are very close but not identical.
- Misconception: "A6 is too small for photos" — Fact: A6 is a popular photo print size, especially for small albums and postcard-sized prints.
📡 Pro Design Tip: A6 Print Preparation
When preparing files for A6 printing, follow these professional guidelines:
- Resolution: 300 DPI for high-quality prints (1,240 × 1,748 px)
- Bleed: Add 3 mm bleed around all edges (full bleed for professional printing)
- Color Mode: CMYK for print, RGB for digital display
- File Format: PDF/X-1a or TIFF for best print quality
- Sharpening: Apply moderate sharpening for print output
- Viewing Distance: A6 is typically viewed at arm's length, so sharpness is important
📊 Understanding Resolution: DPI vs PPI for A6
While often used interchangeably, DPI and PPI have distinct meanings for A6:
- DPI (Dots Per Inch): Used in printing. For A6, 300 DPI is the standard for professional quality.
- PPI (Pixels Per Inch): Used in digital displays. For A6, 300 PPI provides excellent screen quality.
- In practice: For A6 design work, DPI and PPI are often used synonymously. When preparing files for print, focus on DPI.
- Recommended: For print, use 300 DPI. For web, use 72-96 PPI.
🔄 Common A6 Size Use Cases
- 📬 Postcards: A6 is the standard size for postcards and greeting cards worldwide.
- 🎨 Art Prints: Small art prints and limited edition prints often use A6.
- 📋 Flyers: A6 flyers are cost-effective for event promotion and marketing.
- 📖 Notebooks: Pocket-sized notebooks and notepads are often A6 size.
- 🎫 Tickets: Event tickets and admission passes commonly use A6.
- 📸 Photo Albums: A6 is a popular size for photo albums and small prints.
📈 Future of Small Format Paper and Digital Displays
While digital formats continue to evolve, A6 remains highly relevant:
- Digital Signage: A6-sized displays are used for shelf-edge digital signs
- Mobile Design: A6 proportions (1:√2) are often used in mobile UI design
- Print-on-Demand: A6 remains popular for small-batch printing
- QR Codes: A6 is the perfect size for QR code printed materials
- Sustainable Printing: A6 uses minimal paper, making it environmentally friendly
🎓 Educational Resources and Further Reading
- Explore our complete suite of paper size converters
- A5 Size in Pixels
- A4 Size in Pixels
- A3 Size in Pixels
- Paper Size Converter
- DPI Calculator
- Read our blog for more design and printing tips
Last updated: January 2026. Our A6 size in pixels tool is regularly reviewed for accuracy and performance.