A9 Paper Size in mm, Inches and Points
A9 is 37 x 52 mm (1.46 x 2.05 in, 105 x 147 pt). Tiny labels and tickets.
| Unit | Width | Height |
|---|---|---|
| Millimetres | 37 mm | 52 mm |
| Centimetres | 3.7 cm | 5.2 cm |
| Inches | 1.46 in | 2.05 in |
| Points (PDF) | 104.88 pt | 147.4 pt |
| Pixels at 96 dpi | 140 px | 197 px |
The sides are in the ratio 1 : 1.414 (the square root of 2), which is why folding or cutting an A-series sheet in half keeps its shape. Area: 0.0019 m². Landscape: 52 x 37 mm.
A9 in pixels at different resolutions
| Resolution | Size |
|---|---|
| 72 dpi | 105 x 147 px |
| 96 dpi | 140 x 197 px |
| 150 dpi | 219 x 307 px |
| 300 dpi | 437 x 614 px |
| 600 dpi | 874 x 1228 px |
How to check a PDF really is A9
- Open the file in PdfRuler. It runs in your browser and nothing is uploaded.
- Read the page size in the status bar and set the unit to mm. It should read 37 x 52 mm.
- A PDF that says 105 x 147 pt is the same sheet rounded to whole points, so mm may differ by a fraction. That is normal; see what a PDF point is.
Printing it? Check your printer does not rescale the page with the print at actual size test sheet.
Related sizes
- Next larger: A8 (52 x 74 mm), which has twice the area.
- Next smaller: A10 (26 x 37 mm), half the area.
Frequently asked questions
What is the size of A9 in mm?
A9 is 37 x 52 mm (1.46 x 2.05 in) in portrait.
How many pixels is A9?
At 96 dpi, the size of a CSS pixel on screen, A9 is 140 x 197 px. At 300 dpi, a common print resolution, it is 437 x 614 px.
What is A9 in points (the PDF unit)?
A9 is 104.88 x 147.4 pt, usually rounded to 105 x 147 pt. One point is 1/72 of an inch, and PDF page sizes are stored in points.
