What Sizes do Diaries Come In?

Most diaries are based on standard A-series paper sizes. A series begins at A0 size - 841 x 1189 mm. As the number next to the A goes up by one, the size of the paper is reduced by half. It is quite rare to see diaries larger than A3 or smaller than A7. A quick reference guide is:

  • A3 = 297 x 420 mm
  • A4 = 210 x 297 mm -- This is the standard size of copier/printer paper.
  • A5 = 148 x 210 mm
  • A6 = 105 x 148 mm
  • A7 = 74 x 105 mm