A1 paper size
The standard a1 size is 594 × 841 mm (23.39 × 33.11 inches), or 7016 × 9933 pixels at 300 DPI.
Last updated:
Specifications
| Spec | Value |
|---|---|
| Dimensions (px) | 7016 × 9933 px |
| Aspect ratio | 1:1.414 |
| Size (inches) | 23.39 × 33.11 in |
| Size (cm) | 59.4 × 84.1 cm |
| Size (mm) | 594 × 841 mm |
| Supported formats | PDF, PNG, TIFF |
| Color mode | CMYK |
A1 in pixels at different DPI
| Resolution | Width | Height | Use case |
|---|---|---|---|
| 72 DPI | 1684 px | 2384 px | Screen / web |
| 96 DPI | 2246 px | 3178 px | Windows default |
| 150 DPI | 3508 px | 4967 px | Draft print / large posters |
| 300 DPI | 7016 px | 9933 px | High-quality print |
Design at this size with Moda
Start with a canvas pre-set to 7016×9933px and let AI generate your design.
Create an a1 →Design tips
A1 paper is 594×841mm (23.39×33.11 inches). At 300 DPI, that's 7016×9933 pixels. A1 is half of A0 and close in size to the US 24×36" poster standard. It's commonly used for large posters, architectural drawings, and flip charts.
- •A1 is close to the US 24×36" poster size but not identical. Verify which size your print shop expects.
- •Use 150 DPI (3508×4967px) for posters and flip charts. 300 DPI for detailed technical drawings.
- •A1 is the standard flip chart pad size — design presentations with this in mind.
What you need to know
A1 is exactly half of A0 (folded along the long edge) and very close to the US standard poster size of 24×36 inches. At 23.39×33.11 inches, it's slightly narrower and shorter. For international poster printing and scientific conference presentations, A1 is often the specified size.
A1 is the most common size for flip chart pads used in business meetings and workshops. It's large enough to be readable from across a conference room but manageable enough to carry and mount on an easel. Many flip chart pads are padded A1 sheets with perforated tear-off edges.
Like A0, A1 requires wide-format printing. At 300 DPI, the file is about 70 megapixels — 150 DPI (3508×4967 pixels) is sufficient for posters and drawings viewed from a few feet away.
How to create an a1 at the right size
- 1Open Moda and create a new canvas at 7016×9933 pixels.
- 2Design your a1 using AI generation or start from a blank canvas.
- 3Export as PDF and upload to your platform.
Frequently asked questions
What size is A1 paper?
A1 is 594×841mm (23.39×33.11 inches). At 300 DPI: 7016×9933 pixels.
What is A1 in pixels?
At 300 DPI: 7016×9933 px. At 150 DPI: 3508×4967 px. At 72 DPI: 1684×2384 px.
Is A1 the same as 24×36 inches?
No. A1 is 23.39×33.11 inches. The US 24×36" poster is slightly larger. They're close but not interchangeable for precise work.
Specs last verified: March 19, 2026. Dimensions may change as platforms update their requirements.