Image Resizer Online — Scale Pixels, CM, MM & Inches
Resize images to exact dimensions in pixels, centimeters, millimeters, or inches. Includes 1-click aspect ratio locking and official exam presets.
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Processing...How to use Image Resizer Online
- 1 Select or drag and drop your photo into the resizer.
- 2 Choose your measurement unit: Pixels (px), Centimeters (cm), Millimeters (mm), or Inches (in).
- 3 Enter the desired Width and Height, or click a Quick Preset button.
- 4 Toggle "Lock Aspect Ratio" if you want proportions maintained automatically.
- 5 Review the preview and click "Download Resized Image".
Key Features
- Multi-unit support: Pixels (px), Centimeters (cm), Millimeters (mm), Inches (in), Percent (%)
- Calculates physical dimensions at standard 300 DPI print resolution
- Aspect ratio lock prevents image distortion and stretching
- High quality bicubic interpolation for smooth scaling
- Quick presets for Indian Passport, UPSC, SSC, and Social Media
Official Portal Use Cases
- Setting 3.5cm x 4.5cm dimensions for Indian passport and exam photos
- Configuring 140px x 60px dimensions for candidate signatures
- Scaling ID cards to standard 85.6mm x 54mm wallet size
- Formatting banners and thumbnails to 1920x1080 or 1080x1080
Troubleshooting Tips
- If the image appears stretched, ensure the "Lock Aspect Ratio" option is checked.
- When resizing for print documents, use Centimeters or Inches to ensure correct physical output at 300 DPI.
- To upscale very small images without blurriness, avoid enlarging beyond 200% of the original resolution.
Frequently Asked Questions — Image Resizer Online
Quick answers to common questions
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