DPI & Print Size Calculator
Calculate the print dimensions of your image at any DPI, or find how many pixels you need for a given print size and resolution.
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Pixels → Print Size
Print Size:
Enter pixel dimensions above
Print Size → Pixels Needed
Pixels Needed:
Enter print dimensions above
Standard Print Sizes - Pixels Required at 300 DPI
| Print Size | Pixels at 300 DPI | Megapixels | Camera Required |
|---|---|---|---|
| 4×6 inches | 1200 × 1800 px | 2.2 MP | Any modern camera |
| 5×7 inches | 1500 × 2100 px | 3.2 MP | Any modern camera |
| 8×10 inches | 2400 × 3000 px | 7.2 MP | 7+ MP camera |
| 11×14 inches | 3300 × 4200 px | 13.9 MP | 14+ MP camera |
| 16×20 inches | 4800 × 6000 px | 28.8 MP | 24+ MP camera |
| A4 (8.3×11.7 inches) | 2480 × 3508 px | 8.7 MP | 9+ MP camera |
| A3 (11.7×16.5 inches) | 3508 × 4961 px | 17.4 MP | 18+ MP camera |
DPI Explained
DPI (Dots Per Inch) describes the density of printed dots in a given area. Higher DPI means more detail per inch of print. For digital screens, PPI (Pixels Per Inch) is used instead.
- 72–96 DPI - Screen resolution. Not suitable for print.
- 150 DPI - Minimum for acceptable print quality. Suitable for large banners viewed from a distance.
- 300 DPI - Standard for professional photo and document printing.
- 600 DPI - High-quality print for sharp text and fine detail.
Setting DPI in GIMP
In GIMP, go to Image → Print Size to view and set the print resolution of your image. Changing DPI here does not change the pixel count - It only affects how the image appears when printed or exported to PDF. To actually change the pixel count, use Image → Scale Image.