Compare A4 Dimensions
Compare A4 size (US Envelope Paper Sizes) side-by-side with other international formats and reference objects.
Paper Sizing Converters
A4
108 mm × 159 mm
108 mm
Letter
216 mm × 279 mm
216 mm
Credit Card
86 mm
Aspect Ratio
1 : 1.47
Primary format (A4). Comparison aspect ratio is 1 : 1.29.
Digital Output Pixels
1276 px × 1878 px
300 DPI