A5 paper measures 14.8 cm × 21.0 cm.

A5 size in cm

  • Short side: 14.8 cm.
  • Long side: 21.0 cm.
  • Orientation can be portrait (14.8 cm wide × 21.0 cm tall) or landscape (21.0 cm wide × 14.8 cm tall).

Extra quick facts

  • A5 is exactly half of A4 when you cut or fold an A4 sheet along its longest side.
  • The area is about 0.031 square meters, making it handy for notebooks, flyers, and small booklets.

Information gathered from public forums or data available on the internet and portrayed here.