Use this Image DPI Checker to calculate whether your image has enough resolution for print. Drop your file below to see print size, effective DPI and quality signals instantly.
No upload, no account, 100% private. This tool works directly in your browser using HTML5 canvas technology — your image is analyzed locally and never sent to any server.
Drop your image below to check DPI and print size instantly.
For a dedicated print-size workflow, you can also use the main DPI Checker. If the image is only for web, use Optimize Image instead.
DPI tells you how densely image pixels will be placed on paper. The checker converts your image dimensions into practical print sizes, so you can see whether the file is ready for A4, photo prints or posters.
The key formula is simple: print size in inches equals pixels divided by DPI. A 3000 px wide image prints 10 inches wide at 300 DPI.
| DPI | Best for | Result |
|---|---|---|
| 300 DPI | Photos, brochures, product sheets | Sharp close-view print |
| 150 DPI | Posters, banners, drafts | Acceptable from distance |
| 72-96 DPI | Screens and websites | Not a print standard |
Start with your final physical print size. A file that is perfect for a 10 x 15 cm photo may be too small for an A3 poster. The checker helps you compare the same image against realistic output sizes instead of relying on the embedded DPI number alone.
If the result is close to 300 DPI, the image is usually ready for professional print. If it falls between 150 and 300 DPI, it may still work for posters, wall art or drafts viewed from a normal distance. If it is far below 150 DPI, reduce the print size or find a larger source file before spending money on a print order.
Use the result from this page as the decision point for your next action. If the image has the wrong pixel dimensions, open Resize Image and export the exact width and height you need. If the dimensions are correct but the file is too large, use Compress Image or a fixed target page such as Compress Image to 100KB.
For print, verify the final file with the Image DPI Checker before ordering. For social uploads, use Instagram Image Size, Facebook Image Size or the full Social Media Image Size tool so the crop matches the platform before upload.