Pixels to Inches (DPI) Calculator
Find out how large an image will print at a given resolution, or how many pixels you need for a print of a certain size.
How to use the Pixels to Inches (DPI) Calculator
- Choose pixels → inches or inches → pixels.
- Enter the size.
- Enter the resolution in DPI (dots per inch) or PPI (pixels per inch).
How it works
Inches = pixels ÷ DPI and pixels = inches × DPI. A 3,000-pixel-wide photo printed at 300 DPI is 10 inches wide. For high-quality photo prints, 300 DPI is the usual target; 150 DPI is acceptable for posters viewed from a distance, while screens are traditionally described at 72–96 PPI.
Pixels needed for common print sizes at 300 DPI
| Print size | Pixels | Megapixels |
|---|---|---|
| 4 × 6 in | 1,200 × 1,800 | 2.2 MP |
| 5 × 7 in | 1,500 × 2,100 | 3.2 MP |
| 8 × 10 in | 2,400 × 3,000 | 7.2 MP |
| 11 × 14 in | 3,300 × 4,200 | 13.9 MP |
| 16 × 20 in | 4,800 × 6,000 | 28.8 MP |
| 24 × 36 in | 7,200 × 10,800 | 77.8 MP |
Frequently asked questions
How many pixels is 1 inch?
It depends on the resolution: 300 pixels at 300 DPI, 96 at 96 PPI.
What DPI should I use for printing?
300 DPI for photos and documents viewed up close; 150–200 DPI is fine for large posters.
Is DPI the same as PPI?
Strictly, PPI is pixels in an image and DPI is ink dots a printer lays down, but the terms are used interchangeably for print sizing.
How big can I print a 12 MP photo?
A 4000 × 3000 image prints about 13.3 × 10 inches at 300 DPI.