Paper Sizes: DIN A Series (ISO 216:1975)

  1. Design Knowledge
  2. Paper Sizes / Standards
  3. DIN A Series


Common paper sizes

The DIN A series (ISO 216:1975) includes the following formats:

DIN A0   841 x 1189 mm Quadruple sheet
DIN A1   594 x 841 mm Double sheet
DIN A2   420 x 594 mm Sheet
DIN A3   297 x 420 mm Half sheet
DIN A4   210 x 297 mm Quarter sheet (note paper)
DIN A5   148 x 210 mm Eighth sheet (page)
DIN A6   105 x 148 mm Half page
DIN A7   74 x 105 mm Quarter page (postcard)
DIN A8   52 x 74 mm Eighth page
DIN A9   37 x 52 mm  

The width-to-height-ratio (aspect ratio) is √2 : 1. It starts with the DIN A0 paper size, which measures 841 x 1189 mm.

From the base format of this DIN standard, the next smaller sizes are calculated with the formula width : height = √2 : 1