B5 to B4 Conversion
B4 is exactly double B5. If you have a B5 design you want to print larger, you can scale it up to B4 by 141%.
B5 (Original)
B5
176 × 250 mm
6.9 × 9.8 in
6.9 × 9.8 in
B4 (Enlarged)
B4
250 × 353 mm
9.8 × 13.9 in
9.8 × 13.9 in
📊 B5 → B4 Quick Facts:
• Scale Up: 141.4%
• Ratio: B4 = 2 × B5
• Enlarge Factor: Multiply dimensions by √2
• Uses: B4 for newspapers, larger books
• Scale Up: 141.4%
• Ratio: B4 = 2 × B5
• Enlarge Factor: Multiply dimensions by √2
• Uses: B4 for newspapers, larger books
📏 Complete Dimensions
| Unit | B5 | B4 |
|---|---|---|
| Millimetres | 176 × 250 mm | 250 × 353 mm |
| Centimetres | 17.6 × 25.0 cm | 25.0 × 35.3 cm |
| Inches | 6.9 × 9.8 in | 9.8 × 13.9 in |
| Pixels @ 72 DPI | 499 × 709 px | 709 × 1001 px |
| Pixels @ 300 DPI | 2079 × 2953 px | 2953 × 4169 px |
| Pixels @ 600 DPI | 4157 × 5906 px | 5906 × 8339 px |
🔁 Related Conversions
- B5 to B6 – Half size
- B4 to B5 – Reverse conversion
- B4 to B3 – Double size
- B-Series Hub – All B-series sizes
❓ Frequently Asked Questions
Is B4 double B5? Yes — B4 is exactly double the area of B5.
How do I enlarge B5 to B4? Set your printer or software to 141% scale.