A9
Dimensions: 37 × 52 mm (1.46 × 2.05 in)
A9 measures 37 × 52 mm (1.46 × 2.05 in) and belongs to the ISO 216 standard. It is commonly used for micro labels and stickers.
What size is A9 paper?
An A9 piece of paper measures 37 × 52 mm or 1.46 × 2.05 inches. It is part of the A Paper Sizes standard.
| Units | Width × Height |
|---|---|
| Metric millimeters (mm) | 37 × 52 mm |
| Metric centimeters (cm) | 3.70 × 5.20 cm |
| Metric meters (m) | 0.037 × 0.052 m |
| Imperial inches (in) | 1.46 × 2.05 in |
| Typographic points (1/72 inch) (pt) | 104.88 × 147.40 pt |
| Typographic picas (1/6 inch) (pc) | 8.74 × 12.28 pc |
| Pixels at 300 DPI (px) | 437 × 614 px |
A9 is part of the a paper sizes standard. The A series traces its standardised dimensions to DIN 476, published in Germany in 1922. Georg Christoph Lichtenberg had described the underlying square-root-of-two aspect-ratio principle in 1786. ISO 216 brought the A and B trimmed-paper formats into an international standard in 1975; numbered A sizes retain approximately the same proportions as each sheet is halved.
Quick facts
- Size (mm)37 × 52 mm
- Size (inches)1.46 × 2.05 in
- Aspect ratio1 : √2 (≈ 1.414)
- StandardISO 216
- Common useDocuments, letters, forms
Compare A9 with other sizes
Typical uses for A9
A9 measures 37 × 52 mm (1.46 × 2.05 in) and is used for the following tasks.
- Micro labels and stickers
- Model-making and craft templates
- Tiny printed markers
- Sample swatches
Printer tip
Small sheets feed best through the manual slot. Set a custom paper size instead of printing on a larger sheet and trimming afterwards.
A9 at common DPI
Pixel dimensions for A9 at popular resolutions. Rounded to whole pixels; physical sheet remains 37 × 52 mm.
| DPI | Width (px) | Height (px) |
|---|---|---|
| 72 | 105 | 147 |
| 96 | 140 | 197 |
| 150 | 219 | 307 |
| 300 | 437 | 614 |
| 600 | 874 | 1,228 |
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37 × 52 mm (1.46 × 2.05 in)