ISO A series
A8 paper size
A8 measures 52 x 74 mm (2.05 x 2.91 in). Playing cards (approximately), labels, tickets.
52 x 74millimetres
2.05 x 2.91inches
614 x 874pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 52 x 74 mm |
| Centimetres | 5.2 x 7.4 cm |
| Inches (decimal) | 2.047 x 2.913 in |
| Inches (fraction) | 2 1/16 x 2 15/16 in |
| Points (1/72 in) | 147.4 x 209.8 pt |
| Picas | 12.28 x 17.48 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 147 x 210 px | 0 MP |
| 96 dpi | 197 x 280 px | 0.1 MP |
| 150 dpi | 307 x 437 px | 0.1 MP |
| 200 dpi | 409 x 583 px | 0.2 MP |
| 300 dpi | 614 x 874 px | 0.5 MP |
| 600 dpi | 1,228 x 1,748 px | 2.1 MP |
300 dpi is the usual target for printed photos and artwork; 72–96 dpi is screen resolution.
Document size with bleed
| Bleed | Millimetres | Inches |
|---|---|---|
| 3 mm bleed (each side) | 58 x 80 mm | 2.283 x 3.15 in |
| 0.125 in bleed (each side) | 58.4 x 80.4 mm | 2.297 x 3.163 in |
How many A8 fit on a press sheet
| Sheet | Without bleed | With 3 mm bleed |
|---|---|---|
| A4 | 16-up | 10-up |
| A3 | 32-up | 25-up |
| SRA3 | 36-up | 28-up |
| Letter | 12-up | 9-up |
| Tabloid 11 x 17 in | 25-up | 21-up |
| 12 x 18 in | 32-up | 25-up |
| 13 x 19 in (Super B) | 36-up | 32-up |
| B2 (offset) | 81-up | 72-up |
| B1 (offset) | 171-up | 144-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
Envelopes for A8
| Fold | Folded size | Envelopes that fit |
|---|---|---|
| Unfolded | 52 x 74 mm | C8 envelope, C7 envelope |
| Folded in half | 37 x 52 mm | C9 envelope, C8 envelope |
| Folded in thirds | 24.7 x 52 mm | C9 envelope, C8 envelope |
The √2 system
A8 has an aspect ratio of 1 : 1.4231 — close to √2 (1.4142). Folding or cutting it in half across the long side produces the next smaller size in the series with the same proportions, and two sheets side by side form the next larger size. This is why scaling between sizes in the series (for example on a photocopier) never crops or distorts the page.
Similar sizes
Frequently asked questions
What are the dimensions of A8?
A8 is 52 x 74 mm, which is 2.05 x 2.91 in (2 1/16 x 2 15/16 in).
How many pixels is A8 at 300 DPI?
614 x 874 pixels at 300 dpi, or 307 x 437 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.