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 Resize Image in Millimeters (mm)
- 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.
Frequently Asked Questions
How are millimeters converted to pixels?
Pixels = (mm ÷ 25.4) × DPI. For example, 35 mm at 300 DPI is about 413 pixels.
What is a 35×45mm photo?
It's the standard passport/visa photo size in many countries — enter 35 for width and 45 for height.
Is my image uploaded?
No — all resizing happens in your browser.
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