Convert inches to pixels at your chosen DPI. Enter dimensions and DPI to get the pixel count instantly.

US paper sizes and print specifications use inches. To prepare digital artwork, convert to pixels: pixels = inches × DPI.
US Letter paper (8.5 × 11″) at 300 DPI = 2,550 × 3,300 pixels. A 4 × 6″ photo print at 300 DPI = 1,200 × 1,800 pixels.
This conversion is essential for preparing images for US print shops, setting up document templates, and calculating required image resolution.
All calculations run locally in your browser — nothing is sent to any server.
The formula is simply: pixels = inches × DPI. No additional conversion factor needed since DPI is already dots per inch.
At 300 DPI: 1 inch = 300 pixels. At 72 DPI: 1 inch = 72 pixels.
To find required DPI: DPI = pixels / inches. A 4,000 px image printed at 8″ wide = 500 DPI.
| Print size | Inches | Pixels (300 DPI) |
|---|---|---|
| Wallet | 2.5 × 3.5″ | 750 × 1,050 |
| 4×6 photo | 4 × 6″ | 1,200 × 1,800 |
| 8×10 photo | 8 × 10″ | 2,400 × 3,000 |
| US Letter | 8.5 × 11″ | 2,550 × 3,300 |
| Poster (24×36) | 24 × 36″ | 7,200 × 10,800 |

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