JIS B1 paper size
728 × 1030 mm
28.66 × 40.55 inches · 72.8 × 103 cm · aspect ratio 1:1.41
JIS B1 size is 728 × 1030 mm. Those are the JIS B1 dimensions a printer works to; the same sheet in centimetres, inches, points and pixels is below.
What JIS B1 is for
JIS B1 is 728 × 1030 mm. Used for posters and large-format printing in Japan. At 728 × 1030 mm it is 21 mm wider and 30 mm taller than ISO B1, which is enough to jam a sheet feeder set for the other standard.
JIS B1 dimensions in every unit
| Unit | Width | Height |
|---|---|---|
| Millimetres | 728 mm | 1030 mm |
| Centimetres | 72.8 cm | 103 cm |
| Inches | 28.66 in | 40.55 in |
| Points (PostScript) | 2064 pt | 2920 pt |
JIS B1 in pixels
Pixel dimensions depend entirely on the resolution you are working at — there is no single "pixel size" for a sheet of paper. Every resolution, with file sizes and canvas setup →
| Resolution | Pixels | Use |
|---|---|---|
| 72 DPI | 2064 × 2920 | Screen preview only — far too coarse to print |
| 150 DPI | 4299 × 6083 | Draft printing, internal documents |
| 300 DPI | 8598 × 12165 | The standard for commercial print |
| 600 DPI | 17197 × 24331 | Fine detail, line art, archival scanning |
Setting up a print document? Use 300 DPI and add 3 mm of bleed on every edge unless your printer specifies otherwise.
How JIS B1 relates to the rest of the series
About JIS B1
JIS B1 is 728 × 1030 mm, the Japanese B series size, which is not the same as ISO B1.
Other JIS B series (Japan) sizes
| Size | Millimetres | Inches |
|---|---|---|
| JIS B0 | 1030 × 1456 mm | 40.55 × 57.32 in |
| JIS B2 | 515 × 728 mm | 20.28 × 28.66 in |
| JIS B3 | 364 × 515 mm | 14.33 × 20.28 in |
| JIS B4 | 257 × 364 mm | 10.12 × 14.33 in |
| JIS B5 | 182 × 257 mm | 7.17 × 10.12 in |
| JIS B6 | 128 × 182 mm | 5.04 × 7.17 in |
| JIS B7 | 91 × 128 mm | 3.58 × 5.04 in |
| JIS B8 | 64 × 91 mm | 2.52 × 3.58 in |
| JIS B9 | 45 × 64 mm | 1.77 × 2.52 in |
| JIS B10 | 32 × 45 mm | 1.26 × 1.77 in |
Frequently asked questions
What size is JIS B1 in mm?
728 × 1030 mm.
What size is JIS B1 in inches?
28.66 × 40.55 inches.
What size is JIS B1 in pixels?
There is no single answer — it depends on resolution. At the print standard of 300 DPI it is 8598 × 12165 pixels; at 72 DPI it is only 2064 × 2920.