B3 to B4 Conversion
B4 is exactly half of B3. Folding a B3 sheet in half gives you a B4 sheet. This conversion is commonly used for newspapers, larger books, and small posters.
B3 (Original)
B3
353 × 500 mm
13.9 × 19.7 in
13.9 × 19.7 in
B4 (Result)
B4
250 × 353 mm
9.8 × 13.9 in
9.8 × 13.9 in
📊 B3 vs B4 Quick Facts:
• Ratio: 2 B4 sheets = 1 B3 sheet
• Fold: B3 folded in half gives B4
• Scale Factor: 70.7%
• Uses: B4 for newspapers, large books, small posters
• Ratio: 2 B4 sheets = 1 B3 sheet
• Fold: B3 folded in half gives B4
• Scale Factor: 70.7%
• Uses: B4 for newspapers, large books, small posters
📏 Complete Dimensions
| Unit | B3 | B4 |
|---|---|---|
| Millimetres | 353 × 500 mm | 250 × 353 mm |
| Centimetres | 35.3 × 50.0 cm | 25.0 × 35.3 cm |
| Inches | 13.9 × 19.7 in | 9.8 × 13.9 in |
| Pixels @ 72 DPI | 1001 × 1417 px | 709 × 1001 px |
| Pixels @ 300 DPI | 4170 × 5906 px | 2953 × 4170 px |
| Pixels @ 600 DPI | 8339 × 11811 px | 5906 × 8339 px |
🎨 Common Uses
- B3: Posters, small menus, larger books, proofing sheets
- B4: Newspapers, larger books, small posters, proofing sheets
🔁 Related Conversions
- B3 to B2 – Double size
- B4 to B3 – Reverse (double)
- B4 to B5 – Half size
- B-Series Hub – All B-series sizes
❓ Frequently Asked Questions
Is B4 half of B3? Yes — B4 is exactly half the area of B3.
How do I convert B3 to B4? Fold B3 in half, or scale down to 70.7% when printing.