Resize an image to exact millimeter dimensions in your browser. Set the width and height in mm, lock the aspect ratio so it does not stretch, optimize the file size to an exact KB, and use the 35x45 mm passport preset and more. Downloads as JPG. No upload, no signup.
Drag and drop or choose any image to resize.
Type the exact width and height in millimeters, or tap a preset like 35x45 mm. Turn on Optimize File Size to also set a target KB.
Click Download and get the image at the exact mm size you set.
Passport and visa photos, print layouts, and signage are usually measured in millimeters. The most common photo size is 35×45 mm. This resizer converts your image to the exact mm dimensions you need, so it comes out at the right physical size. Type the width and height in mm or tap a preset, then download.
When a portal or print shop caps the file size, turn on Optimize File Size and set the KB. The tool tunes the quality and, if needed, the dimensions, then matches your exact target. To check sharpness before you print, run the file through the DPI checker.
Set the width and height in millimeters with 0.1 mm precision. The pixels are worked out at 200 DPI, so the image comes out at the real-world size you asked for. Good for passport and ID photos, print layouts, and forms that ask for mm.
One-click presets cover the most common sizes: 35x45 mm passport, 50x50 mm square, 50x70 mm photo, 100x150 mm print, A6, and A4. Tap one to set both sides, or type any custom mm values.
Turn on Optimize File Size and enter a size in KB. The tool tunes the quality, shrinks the dimensions if needed, and matches your exact target. Handy for portals that cap uploads at 20 KB, 50 KB, or 100 KB.
Your image never leaves your device. Loading, resizing, and compression all run in your browser, with no upload, no account, and nothing stored. The resized JPG is created on your device.
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Common questions about resizing images in millimeters.
