Free Online Photo Resizer
Resize photos and documents to exact physical dimensions (35x45 mm, 2x2 inches, 50x70 mm) or custom pixel resolutions with print-ready 300 DPI.
Upload Photo to Resize
Resize images to exact millimeters (mm), centimeters (cm), inches (in), or pixels (px) at 300 DPI
Understanding Physical Units & DPI
When government guidelines specify dimensions like 35 × 45 mm or 2 × 2 inches, the exact pixel dimensions depend on the print resolution (DPI).
At standard 300 DPI (Dots Per Inch):
• 1 inch = 300 pixels
• 1 mm = 300 / 25.4 = 11.81 pixels
• 35 × 45 mm = 413 × 531 pixels
• 2 × 2 inches = 600 × 600 pixels
Popular Document Dimension Conversions
| Document / Size | Physical Size | Pixels @ 300 DPI |
|---|---|---|
| Standard Passport / Visa | 35 × 45 mm | 413 × 531 px |
| US Passport & DS-160 | 2 × 2 inches (51 × 51 mm) | 600 × 600 px |
| PAN Card (India) | 25 × 35 mm | 295 × 413 px |
| Canada Passport | 50 × 70 mm | 591 × 827 px |