Resize Image in MM
Set exact mm dimensions, review the result, and export a file that matches precise physical requirements
Upload Your Image
Maximum file size: 20 MB
Supports JPG, PNG, GIF, WebP, and AVIF formats
Professional Millimeter Image Resizer
Advanced mm resizing with perfect quality control and professional results
Millimeter sizing for exact specs
Enter width and height in millimeters for layouts that require strict dimensional accuracy.
Technical document friendly
Useful for manuals, diagrams, and schematics where measurements need to match the physical output.
Scientific and lab use cases
Works well for research materials and lab documentation that depend on consistent real-world sizing.
Manufacturing and production specs
Resize assets to mm-based requirements for production sheets, labels, and assembly documentation.
Medical and imaging workflows
Helpful for materials that require mm-level consistency in healthcare and diagnostic documentation.
Checks for clarity and fit
Preview the output to confirm the resized image remains clear and appropriate for the selected mm dimensions.
Everything you need to know about mm image resizing
Use millimeters when you need exact physical sizing for technical documents, labels, manufacturing specs, or precision print requirements.
The size is calculated mathematically from your inputs. Print accuracy also depends on DPI and the device or printer used for output.
1 inch equals 25.4 mm, and 1 cm equals 10 mm. Millimeters provide finer control for detailed work.
Yes. You can enter mm values and the tool converts the sizing while keeping proportions consistent.
For print, 300 DPI is a common baseline. For technical diagrams or other uses, DPI depends on the required detail and viewing distance.
Check the final width and height shown in the tool and verify the DPI setting before exporting, especially for strict specifications.
Millimeters are mainly for physical output. Web graphics are typically specified in pixels, but mm can help when the same asset must also be printed.
PNG is a good choice for diagrams and sharp edges, while JPG suits photographs. Use a resolution that matches your target mm size.