A1 Size In mm (Millimeter)

What is the exact A1 size in mm (millimeters)? Find out exact A1 paper size dimensions in mm for your printing or designing job.

A1 Paper Size in mm

A1 is an ISO standard paper size, and the actual dimensions are defined in mm. So the A1 size in mm that we give you below is actually the the very size defined in the ISO 216 paper size standard.

The size of one sheet of A1 paper in mm is 841mm x 594mm.

Notes To A1 Dimensions in mm

  • mm is an SI unit, the abbreviation of millimetre (international spelling) or millimeter (American spelling).
  • As A1 is an ISO standard paper size, therefore this A1 size in mm information gives you exact data.
  • To find out more information on the A1 paper size, click on the link.
    • A1 paper size in mm