A sizes for printing: A5, A4, A3, A2, A1
Short answer: every A size has the same shape, 1:√2 (about 1:1.414). A file for A1, 7,016 × 9,933 pixels at 300 DPI, prints A5, A4, A3 and A2 as well.
All A sizes
| Size | Millimetres | Inches | Pixels at 300 DPI |
|---|---|---|---|
| A5 | 148 × 210 | 5.8 × 8.3 | 1,748 × 2,480 |
| A4 | 210 × 297 | 8.3 × 11.7 | 2,480 × 3,508 |
| A3 | 297 × 420 | 11.7 × 16.5 | 3,508 × 4,961 |
| A2 | 420 × 594 | 16.5 × 23.4 | 4,961 × 7,016 |
| A1 | 594 × 841 | 23.4 × 33.1 | 7,016 × 9,933 |
Who needs A sizes
Buyers in the UK, Europe, Australia and most of the world frame in A sizes. If you sell on Etsy worldwide, the ISO file is one of the five worth including.
Get every print ratio from one artworkUpload one artwork, preview every crop, then download all five ratios at 300 DPI in one ZIP.Make my 5 print files
Questions people ask
Is A4 the same ratio as A3?
Yes. Every A size has the ratio 1:√2, so one large file prints all of them.
How many pixels is A4 at 300 DPI?
2,480 by 3,508 pixels.
More guides
- Etsy digital print sizes: which files to include
- 2:3 ratio print sizes
- 3:4 ratio print sizes
- 4:5 ratio print sizes: 8×10, 16×20 and more
- 11×14 print size
- 8×10 vs A4: what's the difference?
- How many pixels do you need to print at 300 DPI?
- 24×36 poster size
- 18×24 print size
- Landscape print sizes: the same ratios, turned sideways
- How to resize art for every print size