A paper sizes: A1 to A5
A sizes are the standard in the UK and most of the world. Each one is exactly half the size above it, and they are all the same shape, so a design scales between them without cropping.
Upload your file and see it at size before you order.
Print any A sizeSizes
| Size | mm | cm | inches |
|---|---|---|---|
| A5 | 148 × 210 | 14.8 × 21 | 5.8 × 8.3 |
| A4 | 210 × 297 | 21 × 29.7 | 8.3 × 11.7 |
| A3 | 297 × 420 | 29.7 × 42 | 11.7 × 16.5 |
| A2 | 420 × 594 | 42 × 59.4 | 16.5 × 23.4 |
| A1 | 594 × 841 | 59.4 × 84.1 | 23.4 × 33.1 |
Pixels for a sharp print
300 DPI for anything seen up close; 150 DPI is fine for A2 and A1 on a wall.
| Size | 300 DPI | 150 DPI |
|---|---|---|
| A5 | 1748 × 2480 px | 874 × 1240 px |
| A4 | 2480 × 3508 px | 1240 × 1754 px |
| A3 | 3508 × 4961 px | 1754 × 2480 px |
| A2 | 4961 × 7016 px | 2480 × 3508 px |
| A1 | 7016 × 9933 px | 3508 × 4967 px |
Which A size for a poster?
A4 and A5 suit desks, shelves and gallery walls. A3 is the classic poster. A2 fills a wall above a sofa or desk. A1 is a statement piece.
Questions
How big is A3 in cm?
29.7 × 42 cm.
How big is A2 in inches?
16.5 × 23.4 inches.
How many A4s make an A1?
Eight. A1 is twice A2, which is twice A3, which is twice A4.
Upload your file and see it at size before you order.
Print any A sizeRelated guides
- What resolution does a poster need?How many pixels a poster needs: DPI explained simply, a quick formula, viewing distance, and pixel sizes for A4, A3, A2 and A1.
- Standard poster sizes in cm and inchesEvery common poster size in one table: A sizes, US inch sizes like 8 × 10, 11 × 14, 18 × 24 and 24 × 36, and European frame sizes like 50 × 70 cm.
- IKEA frame sizes: which print fitsIKEA frame sizes and the print that fits each: 13 × 18, 21 × 30 (A4), 30 × 40, 40 × 50, 50 × 70 and 61 × 91 cm, plus what fits when the mount is in.