A3 Paper Size
A3 gives you a larger sheet for posters, drawings, charts and layouts intended to fold down to A4.
Millimeters297 × 420 mm
Centimeters29.7 × 42 cm
Inches11.69 × 16.54 in
A3 size in pixels
Multiply each dimension in inches by the pixels per inch (PPI), then round to the nearest whole pixel.
| Resolution | Width × height |
|---|---|
| 72 PPI | 842 × 1,191 px |
| 96 PPI | 1,123 × 1,587 px |
| 150 PPI | 1,754 × 2,480 px |
| 300 PPI | 3,508 × 4,961 px |
| 600 PPI | 7,016 × 9,921 px |
From A3 to A4
Halve the 420 mm side of A3 to get two A4 sheets. An A3 layout scales to 70.7% on A4 in the same orientation at 0 mm margins. Select Fit to use the printer’s printable area.
A3 and Tabloid
US Tabloid measures 11 × 17 inches. It is narrower and longer than A3 in portrait orientation. Check the intended print stock before placing artwork near the edges or exporting with bleed.
Common questions
What is A3 paper size in inches?
A3 measures 11.69 × 16.54 inches (297 × 420 mm).
What is A3 at 300 PPI?
A3 is 3,508 × 4,961 pixels at 300 pixels per inch in portrait orientation.