A10 paper size and dimensions
A10 measures 26 × 37 mm, which is 2.6 × 3.7 cm or 1.02 × 1.46 inches. It is the smallest size in the A series, and 64 pieces fit on one A4 sheet.
Contents of this page
A10, portrait
26 × 37mm
- Centimetres
- 2.6 × 3.7 cm
- Inches
- 1.02 × 1.46 in
- Pixels at 300 dpi
- 307 × 437 px
- Points (pt)
- 74 × 105 pt
- Area
- 0.001 m²
- Weight at 80 gsm
- 0.08 g
A10 is roughly the size of a postage stamp. The standard stops at A10 because there is little point printing anything smaller. On paper the series could go on: A11 would be 18 × 26 mm and A12 13 × 18 mm. Neither is standardised.
A10 in every unit
| Unit | Width × height |
|---|---|
| Millimetres | 26 × 37 mm |
| Centimetres | 2.6 × 3.7 cm |
| Metres | 0.026 × 0.037 m |
| Inches | 1.02 × 1.46 in |
| DTP points (1/72 in) | 74 × 105 pt |
| Area | 9.6 cm², or 0.001 m² |
| Diagonal | 45.2 mm |
| Aspect ratio | 1 : 1.423 |
A10 in pixels
| Resolution | Pixels | Megapixels | Good for |
|---|---|---|---|
| 72 dpi | 74 × 105 px | 0.01 MP | Screen, preview |
| 96 dpi | 98 × 140 px | 0.01 MP | Screen (Windows default) |
| 150 dpi | 154 × 219 px | 0.03 MP | Large format, posters seen from a distance |
| 300 dpi | 307 × 437 px | 0.13 MP | Offset and digital print |
| 600 dpi | 614 × 874 px | 0.54 MP | Line art, fine detail |
With 3 mm bleed the document is 32 × 43 mm, which is 378 × 508 px at 300 dpi.
What A10 is used for
- Mini labels for cables, keys or samples
- Price tags for jewellery and small parts
- Tokens and counters for home-made games
- Stickers in postage stamp size
What still fits on A10
At 26 × 37 mm space is tight. A logo, a number or a short word reads well, full sentences do not. A QR code should be at least about 2 × 2 cm in print so phone cameras can read it reliably. It just about fits on A10, with little room left beside it. Keep text at 6 pt or larger, and leave 2 mm to the edge so nothing gets trimmed off.
How many A10 pieces fit on a sheet?
| Sheet | Without bleed | With 3 mm bleed and 5 mm margin |
|---|---|---|
| A4 (210 × 297 mm) | 64 | 36 |
| A3 (297 × 420 mm) | 128 | 72 |
| SRA3 (320 × 450 mm) | 144 | 91 |
With pieces this small it is worth asking whether ready-cut label sheets would do the job. Pre-cut sheets save you 64 cuts per page.
A10 compared
| Size | mm | Area | Compared with A10 |
|---|---|---|---|
| A9 | 37 × 52 mm | 19.2 cm² | twice the area |
| B10 | 31 × 44 mm | 13.6 cm² | 142 % of the area |
| C10 | 28 × 40 mm | 11.2 cm² | 116 % of the area |
| A10 | 26 × 37 mm | 9.6 cm² | |
| D10 | 24 × 34 mm | 8.2 cm² | 85 % of the area |
Frequently asked questions
How big is A10 in cm?
A10 is 2.6 cm wide and 3.7 cm tall.
How many A10 pieces fit on A4?
64, if you cut without bleed.
Is A10 the smallest paper size?
It is the smallest standard size in the A series. A11 and smaller can be calculated but are not standardised.
How many pixels is A10 at 300 dpi?
307 × 437 pixels, or 378 × 508 pixels with 3 mm bleed.
Which envelope fits A10?
C10 at 28 × 40 mm, although envelopes that small are hard to find.