Measurements of paper A3.
A3 in millimeters
- A3 paper size in millimeters is 297 x 420 mm.
- 29.7 x 42.0 centimeters.
A3 in inches
- A3 paper size in inches is 11.7 x 16.5 in.
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 A4 is 4961 x 3508 px.
For printing you often use 200-300 PPI
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.