Standard poster sizes in cm and inches
The UK and Europe use A sizes and centimetre frame sizes; the US uses inches. If you sell online you will want both.
Every size, priced with delivery.
See every size we printSmall: desks, shelves and gallery walls
| Size | cm | inches |
|---|---|---|
| 5 × 7 | 12.7 × 17.8 | 5 × 7 |
| A5 | 14.8 × 21 | 5.8 × 8.3 |
| 8 × 10 | 20.3 × 25.4 | 8 × 10 |
| A4 | 21 × 29.7 | 8.3 × 11.7 |
| 11 × 14 | 27.9 × 35.6 | 11 × 14 |
Medium: most walls
| Size | cm | inches |
|---|---|---|
| A3 | 29.7 × 42 | 11.7 × 16.5 |
| 30 × 40 cm | 30 × 40 | 11.8 × 15.7 |
| 12 × 18 | 30.5 × 45.7 | 12 × 18 |
| 16 × 20 | 40.6 × 50.8 | 16 × 20 |
| 40 × 50 cm | 40 × 50 | 15.7 × 19.7 |
| A2 | 42 × 59.4 | 16.5 × 23.4 |
| 18 × 24 | 45.7 × 61 | 18 × 24 |
Large: statement pieces
| Size | cm | inches |
|---|---|---|
| 50 × 70 cm | 50 × 70 | 19.7 × 27.6 |
| A1 | 59.4 × 84.1 | 23.4 × 33.1 |
| 24 × 36 | 61 × 91.4 | 24 × 36 |
Shapes matter
All A sizes are one shape, so an A4 design scales to A1 untouched. Inch sizes are not: 8 × 10 is squarer than 12 × 18. Make one file per shape you sell, or your print gets cropped or stretched.
Questions
What are the most popular poster sizes?
In the UK and Europe: A3, A2 and 50 × 70 cm. In the US: 18 × 24 and 24 × 36 inches.
Is 50 × 70 the same as A2?
No. A2 is 42 × 59.4 cm; 50 × 70 cm is bigger and a different shape.
Every size, priced with delivery.
See every size we printRelated guides
- A paper sizes: A1 to A5A1, A2, A3, A4 and A5 in mm, cm and inches, how they relate, and the pixel size you need to print each one sharply.
- 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.
- 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.