ISO B series
B4 paper size
B4 measures 250 x 353 mm (9.84 x 13.9 in). Newspapers' supplements, art drawings.
250 x 353millimetres
9.84 x 13.9inches
2,953 x 4,169pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 250 x 353 mm |
| Centimetres | 25 x 35.3 cm |
| Inches (decimal) | 9.843 x 13.898 in |
| Inches (fraction) | 9 13/16 x 13 7/8 in |
| Points (1/72 in) | 708.7 x 1000.6 pt |
| Picas | 59.06 x 83.39 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 709 x 1,001 px | 0.7 MP |
| 96 dpi | 945 x 1,334 px | 1.3 MP |
| 150 dpi | 1,476 x 2,085 px | 3.1 MP |
| 200 dpi | 1,969 x 2,780 px | 5.5 MP |
| 300 dpi | 2,953 x 4,169 px | 12.3 MP |
| 600 dpi | 5,906 x 8,339 px | 49.2 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) | 256 x 359 mm | 10.079 x 14.134 in |
| 0.125 in bleed (each side) | 256.4 x 359.4 mm | 10.093 x 14.148 in |
How many B4 fit on a press sheet
| Sheet | Without bleed | With 3 mm bleed |
|---|---|---|
| A3 | 1-up | 1-up |
| SRA3 | 1-up | 1-up |
| Tabloid 11 x 17 in | 1-up | 1-up |
| 12 x 18 in | 1-up | 1-up |
| 13 x 19 in (Super B) | 1-up | 1-up |
| B2 (offset) | 4-up | 2-up |
| B1 (offset) | 8-up | 4-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
Envelopes for B4
| Fold | Folded size | Envelopes that fit |
|---|---|---|
| Unfolded | 250 x 353 mm | DIN E4 envelope |
| Folded in thirds | 117.7 x 250 mm | #14 envelope, B6/C4 envelope |
The √2 system
B4 has an aspect ratio of 1 : 1.412 — 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 B4?
B4 is 250 x 353 mm, which is 9.84 x 13.9 in (9 13/16 x 13 7/8 in).
How many pixels is B4 at 300 DPI?
2,953 x 4,169 pixels at 300 dpi, or 1,476 x 2,085 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.