Japanese JIS B series

JIS B6 paper size

JIS B6 measures 128 x 182 mm (5.04 x 7.17 in). Manga volumes (tankōbon) and hardcovers.

A4LetterJIS B6
128 x 182millimetres
5.04 x 7.17inches
1,512 x 2,150pixels @ 300 dpi

Dimensions in every unit

UnitWidth x height
Millimetres128 x 182 mm
Centimetres12.8 x 18.2 cm
Inches (decimal)5.039 x 7.165 in
Inches (fraction)5 1/16 x 7 3/16 in
Points (1/72 in)362.8 x 515.9 pt
Picas30.24 x 42.99 pc

Pixel dimensions by resolution

ResolutionPixelsMegapixels
72 dpi363 x 516 px0.2 MP
96 dpi484 x 688 px0.3 MP
150 dpi756 x 1,075 px0.8 MP
200 dpi1,008 x 1,433 px1.4 MP
300 dpi1,512 x 2,150 px3.2 MP
600 dpi3,024 x 4,299 px13 MP

300 dpi is the usual target for printed photos and artwork; 72–96 dpi is screen resolution.

Document size with bleed

BleedMillimetresInches
3 mm bleed (each side)134 x 188 mm5.276 x 7.402 in
0.125 in bleed (each side)134.4 x 188.4 mm5.289 x 7.415 in

How many JIS B6 fit on a press sheet

SheetWithout bleedWith 3 mm bleed
A42-up2-up
A34-up4-up
SRA34-up4-up
Letter2-up2-up
Tabloid 11 x 17 in4-up4-up
12 x 18 in4-up4-up
13 x 19 in (Super B)4-up4-up
B2 (offset)10-up10-up
B1 (offset)25-up25-up

Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.

Envelopes for JIS B6

FoldFolded sizeEnvelopes that fit
Unfolded128 x 182 mmA9 envelope, 6 x 9 booklet envelope, C5 envelope
Folded in half91 x 128 mmA2 envelope, C6 envelope, Monarch envelope
Folded in thirds60.7 x 128 mmC7/C6 envelope, #6¾ envelope, A2 envelope

The √2 system

JIS B6 has an aspect ratio of 1 : 1.4219 — 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 B6?
JIS B6 is 128 x 182 mm, which is 5.04 x 7.17 in (5 1/16 x 7 3/16 in).
How many pixels is JIS B6 at 300 DPI?
1,512 x 2,150 pixels at 300 dpi, or 756 x 1,075 at 150 dpi.

Sources & data

  • Dimensions per the relevant standard; see sources.