B4 vs B6
B4 is 125 mm wider and 177 mm taller than B6. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Compare a Different Pair
B4 and B6, Side by Side
| B4 | B6 | Difference | |
|---|---|---|---|
| Millimetres | 250 × 353 | 125 × 176 | 125 × 177 mm |
| Inches | 9.84 × 13.9 | 4.92 × 6.93 | 4.92 × 6.97 in |
| Centimetres | 25.0 × 35.3 | 12.5 × 17.6 | |
| Area | 0.0882 m², 88,250 mm² | 0.022 m², 22,000 mm² | 4.01× |
| Aspect ratio | 1 : 1.412 (√2) | 1 : 1.408 (√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 | B4 onto B6 | B6 onto B4 |
|---|---|---|---|
| Width | 62.5 mm (2.46 in) each side | B4 loses it | blank band |
| Height | 88.5 mm (3.48 in) each end | B4 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:
| B6 to fit B4 | 200% | leaves a thin border on one pair of edges |
|---|---|---|
| B4 to fit B6 | 50% | 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 B4 bigger than B6?
B4 is bigger. It is 250 × 353 mm against 125 × 176 mm for B6, about 4.01 times the area.
What is the difference between B4 and B6?
B4 is 125 mm wider and 177 mm taller than B6. They are close but not interchangeable: a layout built for one clips or leaves a border on the other.
Can you print B6 on B4?
Not at full size without a change. Shrink B6 to 200% to fit B4, which leaves a thin border, or print at 100% and lose 62.5 mm off each side and 88.5 mm top and bottom.
✓ Dimensions per the standards on the B4 and B6 pages. Differences and scale factors computed. Reviewed . Editorial Process →