Image DPI Checker
Check DPI and the physical print size an image will produce.
Drop your image here
or choose a file — JPG, PNG or WEBP, up to 40 MB
This tool runs in your browser. Your image is not uploaded to our servers.
How it works
Upload an image and this tool reads any DPI value stored in its file header — a PNG's pHYs chunk, or a JPEG's JFIF or EXIF resolution tags. When one is found, it also works out the physical size the image would print at.
Common use cases
- Checking whether a photo is high enough resolution for a print order
- Working out how large an image can print before it looks soft
- Confirming a design file meets a print shop's DPI requirement
Features
- Reads DPI from PNG, JFIF and EXIF metadata
- Calculates physical print size in inches and centimeters
- Shows pixel dimensions, megapixels and file size alongside it
- Clear message when no DPI metadata exists
Supported formats
JPG, PNG
Frequently asked questions
What is DPI?
DPI stands for dots per inch — it's a count of how many pixels a printer will pack into each inch of paper. It has nothing to do with an image's pixel dimensions on their own; the same 3000×2000 image can print small and sharp at 300 DPI or large and soft at 72 DPI.
Why doesn't my image have a DPI value?
DPI is only meaningful for print, so many images — especially screenshots, web graphics and photos straight off a phone — don't store one at all. Screens display pixels directly and ignore DPI entirely.
What DPI should I use for printing?
300 DPI is the standard for sharp photo prints. 150 DPI is usually fine for large posters viewed from a distance, and 72–96 DPI is typical for on-screen use only.
How is print size calculated?
Print size is the image's pixel dimensions divided by its DPI — a 3000-pixel-wide image at 300 DPI prints 10 inches wide.