Formula: Width px = 176 × (DPI ÷ 25.4) • Height px = 250 × (DPI ÷ 25.4)
Note: B5 is between A4 and A5, commonly used for notebooks and books.
B5 Paper Size in Pixels — Complete Guide to B-Series Dimensions
Understanding the exact pixel dimensions of B5 paper is essential for designers, printers, and professionals working with book layouts, notebooks, and medium-format printing. B5 is one of the most popular B-series sizes, ideal for books, brochures, and professional documents. This comprehensive guide covers everything you need to know about B5 size in pixels.
📐 What is B5 Paper Size?
B5 is a standard paper size defined by the ISO 216 international standard for B-series paper. It measures 176 × 250 mm (6.93 × 9.84 inches). B5 is commonly used for:
- Notebooks and journals — Popular for premium notebooks and planners
- Books and manuals — Ideal for paperback books and instruction manuals
- Brochures and flyers — Professional marketing materials
- Comics and manga — Standard size for many comic publications
- Academic papers — Used in some universities for theses and dissertations
The B5 size is part of the B-series paper sizes, where each size is half the previous one. B5 is half of B4 and twice the size of B6. The B-series was designed to provide sizes between A-series sizes, with B5 being larger than A5 and smaller than A4.
📊 B5 vs A4 vs A5
B5 vs A4: B5 (176 × 250 mm) is smaller than A4 (210 × 297 mm). B5 is approximately the geometric mean between A4 and A5.
B5 vs A5: B5 (176 × 250 mm) is larger than A5 (148 × 210 mm). B5 provides a comfortable middle ground between these common sizes.
Key difference: B-series paper is designed to provide intermediate sizes between A-series sizes, making B5 popular for books and notebooks.
📊 B5 Size in Pixels at Common Resolutions
The pixel dimensions of B5 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 | 499 | 709 | 0.35 MP | Web display / Screen |
| 96 DPI | 665 | 945 | 0.63 MP | Standard screen |
| 150 DPI | 1,039 | 1,476 | 1.53 MP | Low-quality print |
| 200 DPI | 1,386 | 1,969 | 2.73 MP | Basic print quality |
| 250 DPI | 1,732 | 2,461 | 4.26 MP | Good print quality |
| 300 DPI | 2,079 | 2,953 | 6.14 MP | Professional print |
| 350 DPI | 2,425 | 3,445 | 8.35 MP | High-quality print |
| 400 DPI | 2,772 | 3,937 | 10.92 MP | Premium print |
| 600 DPI | 4,157 | 5,906 | 24.55 MP | Professional photography |
| 1200 DPI | 8,315 | 11,811 | 98.18 MP | High-resolution scanning |
🧮 How to Calculate B5 Size in Pixels
The formula to convert B5 paper size (176 × 250 mm) to pixels is simple:
🔢 Conversion Formula
Width in pixels: Width (px) = 176 × (DPI ÷ 25.4)
Height in pixels: Height (px) = 250 × (DPI ÷ 25.4)
Total pixels (megapixels): MP = (Width × Height) ÷ 1,000,000
Example: At 300 DPI: Width = 176 × (300 ÷ 25.4) = 2,079 px | Height = 250 × (300 ÷ 25.4) = 2,953 px
The constant 25.4 is the number of millimeters in one inch, which converts mm to inches before multiplying by the DPI value.
📄 B-Series Paper Sizes Comparison
Understanding how B5 compares to other B-series sizes helps you choose the right format for your project:
📊 B-Series Sizes
B0: 1000 × 1414 mm (39.4 × 55.7 in)
B1: 707 × 1000 mm (27.8 × 39.4 in)
B2: 500 × 707 mm (19.7 × 27.8 in)
B3: 353 × 500 mm (13.9 × 19.7 in)
B4: 250 × 353 mm (9.8 × 13.9 in)
B5: 176 × 250 mm (6.9 × 9.8 in)
B6: 125 × 176 mm (4.9 × 6.9 in)
B7: 88 × 125 mm (3.5 × 4.9 in)
📊 Common Sizes Comparison
A4: 210 × 297 mm (8.3 × 11.7 in)
B5: 176 × 250 mm (6.9 × 9.8 in)
A5: 148 × 210 mm (5.8 × 8.3 in)
B6: 125 × 176 mm (4.9 × 6.9 in)
US Letter: 216 × 279 mm (8.5 × 11 in)
US Legal: 216 × 356 mm (8.5 × 14 in)
Comic Book: 178 × 267 mm (7 × 10.5 in)
Manga: 176 × 250 mm (6.9 × 9.8 in)
🖨️ B5 Size for Printing — Resolution Recommendations
Choosing the right resolution for printing B5 depends on viewing distance and print quality requirements:
Books & Notebooks (Viewing Distance: 0.3-0.5m)
Recommended: 250-300 DPI
At 250 DPI: 1,732 × 2,461 px
At 300 DPI: 2,079 × 2,953 px
Perfect for books, notebooks, and journals.
Brochures & Flyers (Viewing Distance: 0.3-0.5m)
Recommended: 300 DPI
At 300 DPI: 2,079 × 2,953 px
Ideal for professional marketing materials and brochures.
Digital Display / Web
Recommended: 72-96 DPI
At 72 DPI: 499 × 709 px
At 96 DPI: 665 × 945 px
Suitable for digital previews and web use.
High-Resolution Scanning
Recommended: 600-1200 DPI
At 600 DPI: 4,157 × 5,906 px
At 1200 DPI: 8,315 × 11,811 px
Used for archival scanning and detailed reproduction.
📊 B5 Size in Different Units
🔄 How to Use This B5 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 B5 paper size.
❓ Frequently Asked Questions
A: At 300 DPI, B5 measures 2,079 × 2,953 pixels (6.14 megapixels). This is the standard resolution for professional quality printing.
A: For web and screen use (72 DPI), B5 measures 499 × 709 pixels. At 96 DPI, it's 665 × 945 pixels.
A: For professional print quality, use 300 DPI (2,079 × 2,953 px). For books and notebooks, 250-300 DPI is recommended.
A: Yes, B5 (176 × 250 mm) is larger than A5 (148 × 210 mm). B5 is approximately the geometric mean between A4 and A5.
A: B5 has an aspect ratio of 1:√2 (approximately 1:1.414). This is the standard aspect ratio for all B-series paper sizes.
A: B5 at 300 DPI is 2,079 × 2,953 = 6,139,287 pixels, or approximately 6.14 megapixels.
A: B5 paper size is 176 × 250 millimeters, or 17.6 × 25.0 centimeters.
A: Yes, B5 (176 × 250 mm) is one of the standard sizes for manga and comic book publications in many countries, including Japan.
📈 Common Misconceptions About B-Series Paper Sizes
- Misconception: "B5 has a fixed pixel size" — Fact: Pixel size depends entirely on DPI/PPI. B5 is always 176 × 250 mm, but pixel dimensions vary with resolution.
- Misconception: "B5 is the same as A4" — Fact: B5 is smaller than A4. B5 is 176 × 250 mm, while A4 is 210 × 297 mm.
- Misconception: "B5 is the same as US Letter" — Fact: B5 (6.93 × 9.84 in) is different from US Letter (8.5 × 11 in). B5 is narrower and shorter.
- Misconception: "Higher DPI always means better quality" — Fact: For print, 300 DPI is sufficient; higher DPI may not be necessary for B5-sized prints.
📡 Pro Design Tip: B5 Print Preparation
When preparing files for B5 printing, follow these professional guidelines:
- Resolution: 300 DPI for high-quality prints (2,079 × 2,953 px)
- Bleed: Add 3-5 mm bleed around all edges (standard for book printing)
- Color Mode: CMYK for print, RGB for digital display
- File Format: PDF/X-1a or TIFF for best print quality
- Margins: Leave 15-20 mm margins for books and notebooks
- Sharpening: Apply moderate sharpening for print output
📊 Understanding B-Series Paper Sizes
The B-series paper sizes are designed to provide intermediate sizes between A-series sizes:
- Origins: The B-series was developed to complement the A-series, providing sizes that are geometric means between A sizes.
- Mathematical basis: Each B size is the geometric mean of the adjacent A sizes. For example, B5 is the geometric mean of A4 and A5.
- Usage: B-series is commonly used for books, notebooks, and envelopes that need sizes between A sizes.
- International standard: ISO 216 defines both A and B series, with B5 being one of the most popular B sizes.
🔄 Common B5 Size Use Cases
- 📖 Books: B5 is a standard size for paperback books and academic publications.
- 📒 Notebooks: Premium notebooks and journals often use B5 size.
- 📰 Brochures: Professional marketing materials often use B5 format.
- 📚 Manga & Comics: B5 is a standard size for manga and comic publications.
- 📄 Academic Papers: Some universities use B5 for theses and dissertations.
- 📮 Calendars: Desk calendars and planners often use B5 size.
📈 Future of B-Series Paper Sizes
As publishing and printing technology continues to evolve, B5 remains a popular standard:
- Digital Publishing: B5 is commonly used in digital book layouts
- Sustainable Printing: B5 is available in eco-friendly paper options
- Custom Printing: B5 continues to be a versatile size for personalized products
- E-Readers: B5-sized digital displays are becoming more common
- Print-on-Demand: B5 is a standard size for print-on-demand services
🎓 Educational Resources and Further Reading
- Explore our complete suite of paper size converters
- B4 Size in Pixels
- B3 Size in Pixels
- Paper Size Converter
- DPI Calculator
- Read our blog for more design and printing tips
Last updated: January 2026. Our B5 size in pixels tool is regularly reviewed for accuracy and performance.