Japanese JIS B series
JIS B5 paper size
JIS B5 measures 182 x 257 mm (7.17 x 10.12 in). Japanese notebooks, magazines, manga anthologies.
182 x 257millimetres
7.17 x 10.12inches
2,150 x 3,035pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 182 x 257 mm |
| Centimetres | 18.2 x 25.7 cm |
| Inches (decimal) | 7.165 x 10.118 in |
| Inches (fraction) | 7 3/16 x 10 1/8 in |
| Points (1/72 in) | 515.9 x 728.5 pt |
| Picas | 42.99 x 60.71 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 516 x 729 px | 0.4 MP |
| 96 dpi | 688 x 971 px | 0.7 MP |
| 150 dpi | 1,075 x 1,518 px | 1.6 MP |
| 200 dpi | 1,433 x 2,024 px | 2.9 MP |
| 300 dpi | 2,150 x 3,035 px | 6.5 MP |
| 600 dpi | 4,299 x 6,071 px | 26.1 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) | 188 x 263 mm | 7.402 x 10.354 in |
| 0.125 in bleed (each side) | 188.4 x 263.4 mm | 7.415 x 10.368 in |
How many JIS B5 fit on a press sheet
| Sheet | Without bleed | With 3 mm bleed |
|---|---|---|
| A4 | 1-up | 1-up |
| A3 | 2-up | 2-up |
| SRA3 | 2-up | 2-up |
| Letter | 1-up | 1-up |
| Tabloid 11 x 17 in | 2-up | 2-up |
| 12 x 18 in | 2-up | 2-up |
| 13 x 19 in (Super B) | 2-up | 2-up |
| B2 (offset) | 4-up | 4-up |
| B1 (offset) | 10-up | 10-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
Envelopes for JIS B5
| Fold | Folded size | Envelopes that fit |
|---|---|---|
| Unfolded | 182 x 257 mm | 9 x 12 catalog envelope |
| Folded in half | 128.5 x 182 mm | A9 envelope, 6 x 9 booklet envelope, C5 envelope |
| Folded in thirds | 85.7 x 182 mm | Monarch envelope, 1/3 A4, #9 envelope |
The √2 system
JIS B5 has an aspect ratio of 1 : 1.4121 — 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 B5?
JIS B5 is 182 x 257 mm, which is 7.17 x 10.12 in (7 3/16 x 10 1/8 in).
How many pixels is JIS B5 at 300 DPI?
2,150 x 3,035 pixels at 300 dpi, or 1,075 x 1,518 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.