Some common paper sizes that we hear today… in mm.
- A0 841 × 1189
- A1 594 × 841
- A2 420 × 594
- A3 297 × 420
- A4 210 × 297
- A5 148 × 210
- A6 105 × 148
- A7 74 × 105
- A8 52 × 74
- A9 37 × 52
- A10 26 × 37
some sites explaining more about these formats, why, what etc… it’s interesting to note that the papers’ height and width were in accordance to the Golden Ratio!