Image DPI / PPI Calculator
Work out how large you can print an image, how many pixels you need for a print size, an image's effective DPI, or a screen's PPI.
Files never leave your device Instant results 100% free No sign-up
How to use the Image DPI / PPI Calculator
- Drop your image(s) into the upload area or click to browse.
- Adjust the settings — the preview updates instantly.
- Download your result as a file, or all files as a ZIP.
Private & secure
Processing happens locally with JavaScript, Canvas and Web APIs.
No uploads, no storage, no account. Close the tab and it is gone.
Works on desktop and mobile in any modern browser.