Compare A1 Dimensions
Compare A1 size (US Envelope Paper Sizes) side-by-side with other international formats and reference objects.
Paper Sizing Converters
A1
92 mm × 130 mm
92 mm
Letter
216 mm × 279 mm
216 mm
Credit Card
86 mm
Aspect Ratio
1 : 1.41 (√2)
Primary format (A1). Comparison aspect ratio is 1 : 1.29.
Digital Output Pixels
1087 px × 1535 px
300 DPI