A4 Size In cm (Centimeter)

What is the exact A4 size in cm (centimeters)? Find out exact A4 paper size dimensions in cm for your printing or designing job.

A4 Paper Size in cm

A4 is an ISO standard paper size, and the actual dimensions are defined in mm. So the A4 size in cm that we give you is precise, not rounded.

The size of one sheet of A4 paper in cm is 29.7cm x 21cm.

Notes To A4 Dimensions in cm

  • cm is an SI unit, the abbreviation of centimetre (international spelling) or centimeter (American spelling).
  • As A4 is an ISO standard paper size, therefore this A4 size in cm information gives you exact data.
  • To find out more information on the A4 paper size, click on the link.

      • a4 paper size cm