ARCH E in pixels
10800 × 14400 px
at 300 DPI, the print standard · ARCH E is 914.4 × 1219.2 mm · 155.5 megapixels
ARCH E at every resolution
A sheet of paper has no pixel size of its own. It has a physical size — 914.4 × 1219.2 mm, or 36 × 48 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 | 2592 × 3456 | 9.0 MP | 26 MB | Screen only — visibly soft in print |
| 96 DPI | 3456 × 4608 | 15.9 MP | 46 MB | Screen only — visibly soft in print |
| 150 DPI | 5400 × 7200 | 38.9 MP | 111 MB | Drafts, internal documents, large-format viewed from a distance |
| 200 DPI | 7200 × 9600 | 69.1 MP | 198 MB | Acceptable for office printing |
| 300 DPI | 10800 × 14400 | 155.5 MP | 445 MB | The commercial print standard |
| 400 DPI | 14400 × 19200 | 276.5 MP | 791 MB | Fine detail and small type |
| 600 DPI | 21600 × 28800 | 622.1 MP | 1.74 GB | Line art, technical drawings, archival scanning |
| 1200 DPI | 43200 × 57600 | 2488.3 MP | 6.95 GB | Archival and reproduction work |
What the file size means for ARCH E
At 300 DPI an uncompressed ARCH E is 445 MB, and at 600 DPI it is 1.74 GB — 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 445 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: 10800 px
Height: 14400 px
Resolution: 300 pixels/inch
Colour: CMYK for print, RGB for screen
Bleed: 3 mm on every edge → 10871 × 14471 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 ARCH E in pixels?
There is no single answer — it depends on the resolution. At the print standard of 300 DPI, ARCH E is 10800 × 14400 pixels. On screen at 72 DPI it is only 2592 × 3456.
What resolution should an ARCH E document be?
300 DPI for anything going to a commercial printer, which makes the canvas 10800 × 14400 pixels. 150 DPI (5400 × 7200) 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 334 MB of file.
How big is an ARCH E file at 300 DPI?
About 445 MB uncompressed at 24-bit colour — 10800 × 14400 × 3 bytes. Compression brings that down a great deal for flat artwork and very little for a photograph, which is why a print-ready ARCH E PDF is usually tens of megabytes.
How many megapixels is ARCH E at 300 DPI?
155.5 megapixels. For comparison, ARCH E at 600 DPI is 622.1 MP — quadruple, because doubling the resolution doubles both dimensions.
ARCH E in millimetres, inches and points · All paper sizes · Screen resolutions