Convert pixels to inches (and inches to pixels) at any DPI — for print sizing, design specs and screen dimensions.
| Input | Result |
|---|---|
| 1920 px at 96 DPI | 20.00 inches |
| 1920 px at 300 DPI | 6.40 inches |
| 300 px at 300 DPI | 1.00 inch |
| 8.5 in at 300 DPI (reverse) | 2550 px |
| Print size | Pixels needed (300 DPI) |
|---|---|
| 4×6 in | 1200 × 1800 px |
| 5×7 in | 1500 × 2100 px |
| 8×10 in | 2400 × 3000 px |
| Letter (8.5×11 in) | 2550 × 3300 px |
| 11×14 in | 3300 × 4200 px |
| Poster (18×24 in) | 5400 × 7200 px |
A photo that looks sharp on a 96-DPI screen (e.g. 1920 px wide ≈ 20 in) only prints sharp at 300 DPI up to 6.4 in wide — DPI is the bridge between screen and paper.
Because DPI (dots per inch) is the density setting. 1920 px is 20 inches on a 96-DPI screen but only 6.4 inches printed at 300 DPI — pixels are count, DPI is density, inches are the result.
300 DPI is the standard for crisp photo prints; 150 DPI is acceptable for posters viewed from a distance; large banners can go as low as 100 DPI.
Multiply by DPI: an 8.5-inch-wide letter page at 300 DPI needs 2550 px. The reverse formula is on this page — enter inches×DPI as pixels.
Browsers standardize CSS at 96 DPI regardless of hardware, so 96 is the right value for web design questions; device pixel ratios complicate retina screens.