B1 vs A1
B1 is 113 mm wider and 159 mm taller than A1. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Compare a Different Pair
B1 and A1, Side by Side
| B1 | A1 | Difference | |
|---|---|---|---|
| Millimetres | 707 × 1000 | 594 × 841 | 113 × 159 mm |
| Inches | 27.83 × 39.37 | 23.39 × 33.11 | 4.45 × 6.26 in |
| Centimetres | 70.7 × 100.0 | 59.4 × 84.1 | |
| Area | 0.707 m², 707,000 mm² | 0.5 m², 499,554 mm² | 1.42× |
| Aspect ratio | 1 : 1.414 (√2) | 1 : 1.416 (√2) | same |
What Is Lost Printing One on the Other
At 100% scale, both centred, nothing resized. A positive figure on the wider or taller side is cropped; on the other it is a blank margin.
| Axis | Gap | B1 onto A1 | A1 onto B1 |
|---|---|---|---|
| Width | 56.5 mm (2.22 in) each side | B1 loses it | blank band |
| Height | 79.5 mm (3.13 in) each end | B1 loses it | blank band |
Scale-to-Fit Percentages
The figure to type into a printer or PDF dialog to scale one to fit inside the other:
| A1 to fit B1 | 119% | leaves a thin border on one pair of edges |
|---|---|---|
| B1 to fit A1 | 84% | leaves a thin border on one pair of edges |
The two share the 1 : √2 shape but are not one halving apart, so a fit-to-page scale still leaves a small border.
Frequently Asked Questions
Is B1 bigger than A1?
B1 is bigger. It is 707 × 1000 mm against 594 × 841 mm for A1, about 1.42 times the area.
What is the difference between B1 and A1?
B1 is 113 mm wider and 159 mm taller than A1. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Can you print A1 on B1?
Not at full size without a change. Shrink A1 to 119% to fit B1, which leaves a thin border, or print at 100% and lose 56.5 mm off each side and 79.5 mm top and bottom.
✓ Dimensions per the standards on the B1 and A1 pages. Differences and scale factors computed. Reviewed . Editorial Process →