B2 to B1 Conversion
B1 is exactly double B2. If you have a B2 design you want to print larger, you can scale it up to B1 by 141% (the inverse of the 70.7% reduction).
B2 (Original)
B2
500 × 707 mm
19.7 × 27.8 in
19.7 × 27.8 in
B1 (Enlarged)
B1
707 × 1000 mm
27.8 × 39.4 in
27.8 × 39.4 in
📊 B2 → B1 Quick Facts:
• Scale Up: 141.4%
• Ratio: B1 = 2 × B2
• Enlarge Factor: Multiply dimensions by √2
• Uses: Technical drawings, medium posters
• Scale Up: 141.4%
• Ratio: B1 = 2 × B2
• Enlarge Factor: Multiply dimensions by √2
• Uses: Technical drawings, medium posters
📏 Complete Dimensions
| Unit | B2 | B1 |
|---|---|---|
| Millimetres | 500 × 707 mm | 707 × 1000 mm |
| Centimetres | 50.0 × 70.7 cm | 70.7 × 100.0 cm |
| Inches | 19.7 × 27.8 in | 27.8 × 39.4 in |
| Pixels @ 72 DPI | 1417 × 2004 px | 2004 × 2835 px |
| Pixels @ 300 DPI | 5906 × 8350 px | 8350 × 11811 px |
| Pixels @ 600 DPI | 11811 × 16701 px | 16701 × 23622 px |
🎨 Common Uses
- B2: Medium posters, wall charts, menus, presentation boards
- B1: Technical drawings, architectural plans, medium-large posters
🔁 Related Conversions
- B1 to B2 – Reverse (half size)
- B2 to B3 – Half size
- B0 to B1 – Larger B-series
- B-Series Hub – All B-series sizes
❓ Frequently Asked Questions
Is B1 double B2? Yes — B1 is exactly double the area of B2.
How do I enlarge B2 to B1? Set your printer or software to 141% scale.