A4 paper size

A4 paper is probably the most common paper size. This paper is standard for printers etc.

Size of paper a4

  • A4 paper size in millimetres is 210 mm x 297 mm.
  • A4 paper size in inches is 8.3 in x 11.7 in.

A4 Size  a4 size

Envelopes for A4 size paper

  • For an unfolded A4 you will need an C4 envelope.
  • Fold the A4 paper once – C5 envelope.
  • Fold the A4 paper twice – C6 envelope.

More about A4 paper size

The A4 paper size is the same as:

  • 2 x A5 paper
  • 4 x A6 paper
  • 1/2 of A3 paper
  • 1/4 of A2 paper

More sizes for A papers

See all paper sizes in the A series.