Passport photo size in pixels — conversion table for every country

Conversion table — common passport sizes

At 300 DPI (most countries):

- US 2×2 inch (51×51 mm) → 600×600 pixels

- Schengen 35×45 mm → 413×531 pixels

- UK 45×35 mm → 531×413 pixels

- Canada PR 35×45 mm → 413×531 pixels

- Canadian passport 50×70 mm → 591×827 pixels

- India eVisa 51×51 mm → 600×600 pixels

- China 33×48 mm → 390×567 pixels

- Saudi eVisa 200×200 px minimum (no DPI constraint)

At 600 DPI (Italy, France, Germany, Switzerland):

- Schengen 35×45 mm → 827×1063 pixels

- Italian passport 35×45 mm → 827×1063 pixels

The conversion formula

pixels = millimeters × (DPI ÷ 25.4)

Example: 35 mm × (300 ÷ 25.4) = 35 × 11.81 = 413 pixels (rounded to the nearest pixel).

Most portal validators accept the rounded integer value. complypic uses precise rounding to match each portal's expected dimensions.

Why different countries use different sizes

The original ICAO 9303 specification (1980) was based on the European 35×45 mm standard, which was already in use by passport authorities at the time. The US chose 2×2 inches (51×51 mm) because it matched the existing photo studio format from the 1960s. China chose 33×48 mm to match its national ID size.

All of these sizes are ICAO 9303 compliant because the photographic content requirements (head height ratio, background, expression) are met — the physical dimensions are left to each issuing country.

Portal upload pixel requirements

Most government portals validate three things: (1) pixel dimensions (exact match to the spec), (2) DPI metadata (matches the implied physical size), (3) file size in KB (varies — US DS-160 is 240 KB max; India eVisa 10 KB–1 MB; Vietnam 2 MB max; Saudi 200 KB–5 MB).

Submitting the wrong pixel count is the #1 cause of portal rejection. complypic outputs the exact pixel count, the correct DPI tag, and the appropriate file size for each country's portal.

FAQ