About This Tool
Whether you're preparing photos for print, designing posters, or checking if an image has enough resolution โ this calculator handles both directions. Enter your image dimensions in pixels and DPI to see the print size, or specify your desired print dimensions to find out how many pixels you need.
DPI (dots per inch) determines print quality. 300 DPI is the standard for professional photo prints and magazines. 150 DPI works for drafts or large posters viewed from a distance. 72 DPI is for screens only โ it will look pixelated when printed.
The calculator shows a quality indicator so you know if your image will print sharp or appear pixelated. It also calculates megapixels, aspect ratio, and maximum recommended print size at 300 DPI.
How to Use
1. Choose your mode: "Pixels โ Print" or "Print โ Pixels"
2. For Pixels โ Print: enter width and height in pixels (or select a camera preset), then set DPI
3. For Print โ Pixels: enter desired print width and height in inches or cm, then set DPI
4. Read the result with quality indicator
5. Use DPI presets (72, 150, 300, 600) or enter a custom value
6. Check the "Max print at 300 DPI" to see the largest quality print from your image
Formula
Print size (inches) = Pixels รท DPI
Print size (cm) = Pixels รท DPI ร 2.54
Required pixels = Print size (inches) ร DPI
Megapixels = (Width ร Height) รท 1,000,000
Quality guidelines:
300+ DPI = Excellent (professional print)
200-299 DPI = Good (most prints)
150-199 DPI = Fair (large posters, distance viewing)
<150 DPI = Poor (may appear pixelated)