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Image DPI Checker

Check an image's pixel dimensions and print resolution.

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Drop an image here or click to browse

Everything runs in your browser — your image is never uploaded to a server.

What Is Image DPI Checker?

The Image DPI Checker tells you an image pixel dimensions, its file size in megapixels, and how large it can be printed before it looks soft. It reads any resolution tag stored in the file and reports the print size at 96, 150 and 300 dpi in both inches and centimetres. It also marks the image pass or fail against common uses such as an A4 sheet at 300 dpi.

Who Uses the Image DPI Checker?

Printers, designers, marketplace sellers and anyone about to send an image to a photo lab use it to find out whether their file is really high enough resolution for the print size they want.

How to Use the Image DPI Checker

  1. Drop your image in and let it be measured.
  2. Read the pixel width, pixel height, file size and megapixel count shown at the top of the report.
  3. Compare the print sizes the image supports at 96, 150 and 300 dpi, then check the pass and fail badges for common uses such as an A4 sheet at 300 dpi.

Why Choose Our Image DPI Checker?

  • Reads the embedded resolution from the PNG pHYs chunk or the JPEG JFIF header
  • Print-size table in both inches and centimetres at 96, 150 and 300 dpi shows exactly how big you can go
  • Warns when no DPI tag is stored, which is the usual reason print software falls back to 96 dpi
  • Marks each resolution Sharp or Soft so you know the safe print limit for your file

Try the Image DPI Checker above — it is free, fast, and works on any device. Bookmark this page to return whenever you need it.