US Letter Size
US Letter is 8.5 × 11 inches (215.9 × 279.4 mm) — the default paper size in North America. At 300 DPI it's 2550 × 3300 pixels. Used for business documents, marketing one-pagers, school materials, and any print collateral in the United States or Canada. It's slightly wider and shorter than A4.
Specifications
| Pixels | 2550 × 3300 px (at 300 DPI) |
| Millimetres | 215.9 × 279.4 mm |
| Centimetres | 21.6 × 27.9 cm |
| Inches | 8.5 × 11 in |
| Aspect ratio | 17:22 |
| Colour mode | CMYK for print / RGB for screen |
| Bleed | 3 mm |
| Safe zone | 12.7 mm (0.5 in) from trim |
US Letter in Pixels at Different DPI
The pixel count changes with DPI setting — choose the right one for your output.
| DPI | Width (px) | Height (px) | Use |
|---|---|---|---|
| 72 | 612 | 792 | Screen preview, PDF viewers |
| 96 | 816 | 1,056 | Windows screen standard, digital documents |
| 150 | 1,275 | 1,650 | Medium-quality print, home printers |
| 300 | 2,550 | 3,300 | Professional print, commercial offset |
Design Tips
- →US Letter and A4 are not interchangeable — Letter is 6 mm wider and 18 mm shorter than A4. Always confirm which format your printer stocks before sending artwork.
- →Standard US margin convention is 1 inch (25.4 mm) on all sides for documents. For flyers and marketing materials, margins of 0.5 inch (12.7 mm) are common.
- →For edge-to-edge designs, add 0.125 inch (3.175 mm) bleed on each side — this is the US print industry standard, equivalent to 3 mm metric bleed.
- →Export as PDF with 'US Letter' page size set explicitly in your PDF settings to avoid automatic A4 conversion by Adobe Acrobat.
How to Make US Letter Designs in Playyy
Three steps, no design software. Set the size once — from the size options or straight in your prompt — and every design comes out at 2,550 × 3,300 px.
- 1
Open Playyy
Playyy runs in your browser, so there's nothing to download. Sign in and you'll land on the Home page.
- 2
Type your prompt and set the US Letter size
Describe what you want in the input box on the Home page, then set the size whichever way is quicker. Pick US Letter from the size options right underneath — print, poster, and social formats are all in that list. Or just say it in your prompt, like "US Letter at 2,550 × 3,300 px", and Playyy matches it. Either way you get 2,550 × 3,300 px at 300 DPI, with no converting from millimetres or inches.
- 3
Create your US Letter design and export it for print
Playyy generates the design at the full 2,550 × 3,300 px — that's US Letter at 300 DPI, the resolution commercial print expects. Allow 3 mm of bleed and export a print-ready PDF. Colour mode: CMYK for print / RGB for screen.
Create US Letter designs with Playyy
Type a prompt, pick US Letter from the size options underneath it, and export at 2550 × 3300 px — no design software needed.
Start designing free →Frequently Asked Questions
What is US Letter size in mm?+
US Letter is 215.9 × 279.4 mm (21.59 × 27.94 cm). It's the standard North American document size — equivalent to A4 in use, but slightly wider (by 5.9 mm) and shorter (by 17.6 mm).
What is US Letter size in pixels at 300 DPI?+
US Letter at 300 DPI is 2550 × 3300 pixels. At 150 DPI it's 1275 × 1650 px. At 96 DPI it's 816 × 1056 px. Use 300 DPI for professional print output; 96 DPI works for digital documents.
Is US Letter the same as A4?+
No. US Letter (8.5 × 11 in / 215.9 × 279.4 mm) and A4 (8.27 × 11.69 in / 210 × 297 mm) are different sizes. A4 is taller and narrower. Printing an A4 document on Letter paper clips the bottom; printing a Letter document on A4 adds white space at the bottom.
What is US Letter in pixels?+
At 300 DPI, US Letter is 2550 × 3300 pixels. At 150 DPI it is 1275 × 1650 px, and at 96 DPI it is 816 × 1056 px. Use 300 DPI for anything going to a commercial printer; 96 DPI is only appropriate for on-screen documents.
Where is US Letter used instead of A4?+
US Letter (8.5 × 11 in) is the standard office and print size in the United States, Canada, Mexico, Chile, and the Philippines. Almost everywhere else uses A4 (210 × 297 mm). Sending a Letter-sized PDF to an A4 country means the recipient's printer will scale or crop it.