Resize Image in Millimeters (mm)
Resize an image to exact millimeter dimensions at a chosen DPI, ideal for photo standards.
About Resize Image in Millimeters (mm)
Resize an image to precise physical dimensions in millimeters. Enter the width and height in mm and choose a resolution (DPI); the tool converts to the exact pixel size and resizes your image. It's perfect for standard photo sizes like 35 × 45 mm used for passports and visas. Everything runs locally in your browser.
How to use
- 1
Upload your image.
- 2
Enter the width and height in millimeters.
- 3
Choose a DPI (300 is standard for printing).
- 4
Click Resize image and download.
Tip: All processing is performed locally in your browser with zero loss in quality and no upload limits.
Frequently Asked Questions
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Guides & Tutorials
How to Resize an Image in CM for Printing
Set an image to exact centimeter dimensions at the right DPI so it prints at the correct physical size — free and processed in your browser.
How to Resize a Photo to 35×45mm (Passport & Visa Size)
35×45mm is the standard passport photo size in many countries. Here's how to resize your photo to exactly 35×45mm at print resolution, free in your browser.