Toolman

JIS B5 in pixels

2150 × 3035 px

at 300 DPI, the print standard · JIS B5 is 182 × 257 mm · 6.5 megapixels

JIS B5 size in pixels has no single answer, because a pixel is a length only once a resolution decides how many fit in an inch. The JIS B5 pixel size is 2150 × 3035 px at the 300 DPI print standard and 516 × 729 px at the 72 DPI screen convention — every resolution in between is in the table below.

JIS B5 at every resolution

A sheet of paper has no pixel size of its own. It has a physical size — 182 × 257 mm, or 7.17 × 10.12 inches — and a pixel count only appears once you choose how many pixels go in each inch.

ResolutionPixelsMegapixelsUncompressed 24-bitUse
72 DPI516 × 7290.4 MP1.1 MBScreen only — visibly soft in print
96 DPI688 × 9710.7 MP1.9 MBScreen only — visibly soft in print
150 DPI1075 × 15181.6 MP4.7 MBDrafts, internal documents, large-format viewed from a distance
200 DPI1433 × 20242.9 MP8.3 MBAcceptable for office printing
300 DPI2150 × 30356.5 MP19 MBThe commercial print standard
400 DPI2866 × 404711.6 MP33 MBFine detail and small type
600 DPI4299 × 607126.1 MP75 MBLine art, technical drawings, archival scanning
1200 DPI8598 × 12142104.4 MP299 MBArchival and reproduction work

What the file size means for JIS B5

At 300 DPI an uncompressed JIS B5 is 19 MB, and at 600 DPI it is 75 MB — four times as much, because doubling the resolution doubles both dimensions. That squaring is the reason large formats become unwieldy so quickly: the same 300 DPI that produces a manageable file at small sizes produces 19 MB here.

If a file is going to a printer, ask what they want before choosing. 300 DPI is the safe default and 150 is often enough for anything read from more than arm's length.

Setting up the canvas

Width:      2150 px
Height:     3035 px
Resolution: 300 pixels/inch
Colour:     CMYK for print, RGB for screen
Bleed:      3 mm on every edge → 2220 × 3106 px

The bleed figure is the one people forget: artwork that runs to the edge must extend 3 mm past it on all four sides, so the working canvas is larger than the finished sheet.

Frequently asked questions

What is JIS B5 in pixels?

There is no single answer — it depends on the resolution. At the print standard of 300 DPI, JIS B5 is 2150 × 3035 pixels. On screen at 72 DPI it is only 516 × 729.

What resolution should an JIS B5 document be?

300 DPI for anything going to a commercial printer, which makes the canvas 2150 × 3035 pixels. 150 DPI (1075 × 1518) is acceptable for a draft or an internal document. Large formats read from a distance can go lower — a poster viewed from two metres looks sharp at 150 DPI, and dropping to it here saves 14 MB of file.

How big is an JIS B5 file at 300 DPI?

About 19 MB uncompressed at 24-bit colour — 2150 × 3035 × 3 bytes. Compression brings that down a great deal for flat artwork and very little for a photograph, which is why a print-ready JIS B5 PDF is usually tens of megabytes.

How many megapixels is JIS B5 at 300 DPI?

6.5 megapixels. For comparison, JIS B5 at 600 DPI is 26.1 MP — quadruple, because doubling the resolution doubles both dimensions.

Other sizes in pixels

JIS B5 in millimetres, inches and points · All paper sizes · Screen resolutions