ANSI C in pixels
5100 × 6600 px
at 300 DPI, the print standard · ANSI C is 431.8 × 558.8 mm · 33.7 megapixels
ANSI C at every resolution
A sheet of paper has no pixel size of its own. It has a physical size — 431.8 × 558.8 mm, or 17 × 22 inches — and a pixel count only appears once you choose how many pixels go in each inch.
| Resolution | Pixels | Megapixels | Uncompressed 24-bit | Use |
|---|---|---|---|---|
| 72 DPI | 1224 × 1584 | 1.9 MP | 5.5 MB | Screen only — visibly soft in print |
| 96 DPI | 1632 × 2112 | 3.4 MP | 9.9 MB | Screen only — visibly soft in print |
| 150 DPI | 2550 × 3300 | 8.4 MP | 24 MB | Drafts, internal documents, large-format viewed from a distance |
| 200 DPI | 3400 × 4400 | 15.0 MP | 43 MB | Acceptable for office printing |
| 300 DPI | 5100 × 6600 | 33.7 MP | 96 MB | The commercial print standard |
| 400 DPI | 6800 × 8800 | 59.8 MP | 171 MB | Fine detail and small type |
| 600 DPI | 10200 × 13200 | 134.6 MP | 385 MB | Line art, technical drawings, archival scanning |
| 1200 DPI | 20400 × 26400 | 538.6 MP | 1.50 GB | Archival and reproduction work |
What the file size means for ANSI C
At 300 DPI an uncompressed ANSI C is 96 MB, and at 600 DPI it is 385 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 96 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: 5100 px
Height: 6600 px
Resolution: 300 pixels/inch
Colour: CMYK for print, RGB for screen
Bleed: 3 mm on every edge → 5171 × 6671 pxThe 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 ANSI C in pixels?
There is no single answer — it depends on the resolution. At the print standard of 300 DPI, ANSI C is 5100 × 6600 pixels. On screen at 72 DPI it is only 1224 × 1584.
What resolution should an ANSI C document be?
300 DPI for anything going to a commercial printer, which makes the canvas 5100 × 6600 pixels. 150 DPI (2550 × 3300) 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 72 MB of file.
How big is an ANSI C file at 300 DPI?
About 96 MB uncompressed at 24-bit colour — 5100 × 6600 × 3 bytes. Compression brings that down a great deal for flat artwork and very little for a photograph, which is why a print-ready ANSI C PDF is usually tens of megabytes.
How many megapixels is ANSI C at 300 DPI?
33.7 megapixels. For comparison, ANSI C at 600 DPI is 134.6 MP — quadruple, because doubling the resolution doubles both dimensions.
ANSI C in millimetres, inches and points · All paper sizes · Screen resolutions