Photo sizes / reference
Passport Photo Size in mm, Inches and Pixels
The same photo size expressed three ways — millimeters, inches, and pixels at 300 DPI. Every value below is computed from the millimeter standard, not copied.
Immigration documents define photo size in millimeters. Print shops in the US think in inches, and digital submission portals ask for pixels. The three are the same measurement: 2 inches is exactly 50.8mm, which at 300 DPI is exactly 600 pixels.
| Document | Millimeters | Inches | Pixels @300 DPI |
|---|---|---|---|
| United States Passport | 50.8 × 50.8 mm | 2.00 × 2.00 in | 600 × 600 px |
| India Passport | 51 × 51 mm | 2.01 × 2.01 in | 602 × 602 px |
| China Visa | 33 × 48 mm | 1.30 × 1.89 in | 390 × 567 px |
| Canada Passport | 50 × 70 mm | 1.97 × 2.76 in | 591 × 827 px |
| Schengen states Visa | 35 × 45 mm | 1.38 × 1.77 in | 413 × 531 px |
| United Kingdom Passport | 35 × 45 mm | 1.38 × 1.77 in | 413 × 531 px |
How the conversion works
Pixels = millimeters ÷ 25.4 × DPI. At the print standard of 300 DPI, one millimeter is about 11.8 pixels. So a 35×45mm Schengen photo is 413×531 pixels — close to, but not exactly, the 354×472 some portals request, which is why you should always check the digital requirement separately from the print size.
Never stretch a photo to “make it fit”
Cropping changes what is in the frame; stretching changes what your face looks like. Only crop is acceptable for identity documents.
Common sizes people confuse
- 2×2 inches (US) is 50.8×50.8mm — not 50×50, and not 51×51 (India).
- 35×45mm (Schengen/UK/Japan/NZ) is a different ratio from 2×2; you cannot reuse a US passport crop.
- 33×48mm (China visa) is taller than it looks — a US crop will not cover it.
- 50×70mm (Canada) is one of the tallest passport formats, and Canada rejects digitally altered photos entirely.