Resize Image to Millimeters
Resize images to exact millimeter dimensions with custom DPI/PPI settings. Perfect for passport photos, ID cards, and precise metric printing with accurate physical dimensions. Fast, secure, and works entirely in your browser.
Upload & Preview
Resize Settings
Ready to Resize
Upload an image to start resizing to exact millimeter dimensions
About Resize to MM Tool
Our free online resize to millimeters tool helps you resize images to exact millimeter dimensions with custom DPI/PPI settings. Perfect for creating passport photos, ID cards, visa photos, and precise metric printing with accurate physical dimensions.
Simply upload your image, enter your desired dimensions in millimeters, select the appropriate DPI resolution (72 for web, 150 for draft, 300 for high-quality printing), and resize. The tool automatically calculates the exact pixel dimensions needed using the formula: pixels = (mm ÷ 25.4) × DPI. All processing happens in your browser, ensuring your images remain private and secure. No registration required, completely free to use.
Key Features
Metric Precision
Resize to exact millimeter dimensions with custom DPI settings.
Passport Photos
Perfect for passport photos, ID cards, and visa applications.
100% Secure
All processing happens locally in your browser for privacy.
How to Use Resize to MM Tool
Upload Your Image
Click the upload area or drag and drop your photo. Supports JPG, PNG, WebP formats.
Set Dimensions
Enter width and height in millimeters. Use presets or enter custom dimensions.
Set DPI/PPI
Choose 72 for web, 150 for draft, or 300 DPI for high-quality printing.
Resize & Download
Click "Resize Image" to process and download your print-ready image.
Pro Tip: For passport photos, use 300 DPI and standard sizes like 35×45mm or 51×51mm. Always check your country's specific requirements.