How to use image dpi calculator
- Choose an image.
- Enter the physical print width and height.
- Review the effective DPI calculation.
- Adjust print size to compare resolution.
Useful for
Before you start
This tool is intended for quick browser-based file work. Keep an original copy of important files and review the downloaded result before using it in a final submission or publication.
Private browser-based processing
The processing for this tool happens in your browser. Your source file does not need to be sent to the MiniImgTools application server before the result is created.
Tips for better results
- This calculator does not claim to read embedded EXIF DPI metadata.
- Effective DPI depends on both pixel dimensions and physical print size.
Frequently asked questions
Is Image DPI Calculator free to use?
Yes. Image DPI Calculator on MiniImgTools is completely free, with no signup and no payment. The tool runs in your browser, so you can use it as many times as you need.
Are my files uploaded to a server?
No. The processing for this tool happens locally in your browser on your own device. Your source file does not need to be sent to the MiniImgTools application server before the result is created.
Which file formats does this tool support?
Core image tools are tested for JPG, PNG and WebP. PDF and DOCX tools explain their own supported inputs and limitations on the page. Very large images can exceed browser memory, so keep your original file and review the output.