Compare JB4 Dimensions
Compare JB4 size (Japanese Paper Sizes) side-by-side with other international formats and reference objects.
Paper Sizing Converters
JB4
257 mm × 364 mm
257 mm
Letter
216 mm × 279 mm
216 mm
Credit Card
86 mm
Aspect Ratio
1 : 1.41 (√2)
Primary format (JB4). Comparison aspect ratio is 1 : 1.29.
Digital Output Pixels
3035 px × 4299 px
300 DPI