Japanese JIS B series
JIS B2 paper size
JIS B2 measures 515 x 728 mm (20.28 x 28.66 in). Part of the Japanese JIS B series.
515 x 728millimetres
20.28 x 28.66inches
6,083 x 8,598pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 515 x 728 mm |
| Centimetres | 51.5 x 72.8 cm |
| Inches (decimal) | 20.276 x 28.661 in |
| Inches (fraction) | 20 1/4 x 28 11/16 in |
| Points (1/72 in) | 1459.8 x 2063.6 pt |
| Picas | 121.65 x 171.97 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 1,460 x 2,064 px | 3 MP |
| 96 dpi | 1,946 x 2,751 px | 5.4 MP |
| 150 dpi | 3,041 x 4,299 px | 13.1 MP |
| 200 dpi | 4,055 x 5,732 px | 23.2 MP |
| 300 dpi | 6,083 x 8,598 px | 52.3 MP |
| 600 dpi | 12,165 x 17,197 px | 209.2 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) | 521 x 734 mm | 20.512 x 28.898 in |
| 0.125 in bleed (each side) | 521.4 x 734.4 mm | 20.526 x 28.911 in |
How many JIS B2 fit on a press sheet
| Sheet | Without bleed | With 3 mm bleed |
|---|---|---|
| B1 (offset) | 1-up | 1-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
The √2 system
JIS B2 has an aspect ratio of 1 : 1.4136 — 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 B2?
JIS B2 is 515 x 728 mm, which is 20.28 x 28.66 in (20 1/4 x 28 11/16 in).
How many pixels is JIS B2 at 300 DPI?
6,083 x 8,598 pixels at 300 dpi, or 3,041 x 4,299 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.