A3 size in pixels, inches, millimeters

Measurements of paper A3.

A3 in pixels

A3 paper size in pixels with a resolution of 72 PPI is 842 x 1191 px.
Screens and monitors usually use 72 PPI.

In a resolution of 300 PPI A3 is 3508 x 4961 px.
For printing you often use 200-300 PPI

  • 72 DPI/PPI – 842 x 1191 px
  • 96 DPI/PPI – 1123 x 1587 px
  • 150 DPI/PPI – 1754 x 2480 px
  • 300 DPI/PPI – 3508 x 4960 px (high quality print)

A3 size Pixel Converter

Width × Height ( 11.7 × 16.5 in. or 297 × 420 mm. )

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A4 dimensions (changeble)

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A3 in millimeters

  • A3 paper size in millimeters is 297 x 420 mm.
  • 29.7 x 42.0 centimeters.
A3 size in millimeters

A3 in inches

  • A3 paper size in inches is 11.7 x 16.5 in.
A3 size in inches

Envelopes for A3 paper.

  • For an unfolded A3 you will need an C3 envelope.
  • Fold the A3 paper once – C4 envelope.

More A papers formats

See all paper sizes in A series.