Japanese JIS B series
JIS B4 paper size
JIS B4 measures 257 x 364 mm (10.12 x 14.33 in). Japanese newspapers and test papers.
257 x 364millimetres
10.12 x 14.33inches
3,035 x 4,299pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 257 x 364 mm |
| Centimetres | 25.7 x 36.4 cm |
| Inches (decimal) | 10.118 x 14.331 in |
| Inches (fraction) | 10 1/8 x 14 5/16 in |
| Points (1/72 in) | 728.5 x 1031.8 pt |
| Picas | 60.71 x 85.98 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 729 x 1,032 px | 0.8 MP |
| 96 dpi | 971 x 1,376 px | 1.3 MP |
| 150 dpi | 1,518 x 2,150 px | 3.3 MP |
| 200 dpi | 2,024 x 2,866 px | 5.8 MP |
| 300 dpi | 3,035 x 4,299 px | 13 MP |
| 600 dpi | 6,071 x 8,598 px | 52.2 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) | 263 x 370 mm | 10.354 x 14.567 in |
| 0.125 in bleed (each side) | 263.4 x 370.4 mm | 10.368 x 14.581 in |
How many JIS 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) | 2-up | 2-up |
| B1 (offset) | 4-up | 4-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
Envelopes for JIS B4
| Fold | Folded size | Envelopes that fit |
|---|---|---|
| Unfolded | 257 x 364 mm | DIN E4 envelope |
| Folded in half | 182 x 257 mm | 9 x 12 catalog envelope |
| Folded in thirds | 121.3 x 257 mm | #14 envelope, B6/C4 envelope |
The √2 system
JIS B4 has an aspect ratio of 1 : 1.4163 — 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 JIS B4?
JIS B4 is 257 x 364 mm, which is 10.12 x 14.33 in (10 1/8 x 14 5/16 in).
How many pixels is JIS B4 at 300 DPI?
3,035 x 4,299 pixels at 300 dpi, or 1,518 x 2,150 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.