A3 at 300 DPI
3508 × 4961 px
297 × 420 mm · 11.693 × 16.535 in · 1:1.41 · 17.4 megapixels at print resolution.
A3 in pixels at every DPI
| DPI | Pixels | Megapixels | Use |
|---|---|---|---|
| 72 | 842 × 1191 | 1 | Screen / web preview |
| 96 | 1123 × 1587 | 1.8 | CSS reference density |
| 150 | 1754 × 2480 | 4.3 | Large-format posters |
| 200 | 2339 × 3307 | 7.7 | Draft print |
| 300 | 3508 × 4961 | 17.4 | Standard print quality |
| 600 | 7016 × 9921 | 69.6 | Fine art / high detail |
Dimensions
| Unit | Width | Height |
|---|---|---|
| Millimetres | 297 mm | 420 mm |
| Centimetres | 29.7 cm | 42 cm |
| Inches | 11.693 in | 16.535 in |
| Points (72/in) | 841.9 pt | 1190.5 pt |
| CSS pixels (96/in) | 1123 px | 1587 px |
Related ISO A sizes
| Format | mm | inches | 300 DPI pixels |
|---|---|---|---|
| A0 | 841 × 1189 | 33.11 × 46.811 | 9933 × 14043 |
| A1 | 594 × 841 | 23.386 × 33.11 | 7016 × 9933 |
| A2 | 420 × 594 | 16.535 × 23.386 | 4961 × 7016 |
| A3 | 297 × 420 | 11.693 × 16.535 | 3508 × 4961 |
| A4 | 210 × 297 | 8.268 × 11.693 | 2480 × 3508 |
| A5 | 148 × 210 | 5.827 × 8.268 | 1748 × 2480 |
| A6 | 105 × 148 | 4.134 × 5.827 | 1240 × 1748 |
| A7 | 74 × 105 | 2.913 × 4.134 | 874 × 1240 |
| A8 | 52 × 74 | 2.047 × 2.913 | 614 × 874 |
Questions
What is A3 in pixels?
At 300 DPI — the standard for print — A3 is 3508 × 4961 pixels. At 72 DPI it is 842 × 1191, and at 150 DPI 1754 × 2480.
What size is A3 in mm and inches?
A3 measures 297 × 420 mm, which is 11.693 × 16.535 inches.
What DPI should I use for A3?
300 DPI for anything held in the hand — flyers, brochures, photo prints. 150 DPI is acceptable for large posters viewed from a distance. 72 DPI is a screen resolution and will look visibly soft in print.
Dimensions per ISO 216. Pixel values are computed as inches × DPI and rounded to whole pixels. ISO 216. Each size is the previous one halved along its longer side; the ratio is always 1:√2.