Passport photo sizes vary by country, but the most common standard you’ll encounter is 35 mm by 45 mm (width x height). Here are the typical size guidelines you’ll see across many passport programs, plus a quick note on how they’re measured and framed: Direct answer

• Common standard size: 35 mm x 45 mm (width x height) for many national passports. [source-like, general standard]

• Face dimensions (how much of the photo your head should occupy): roughly 16–20 mm from ear to ear for the width of the head, and about 26–30 mm from chin to crown for those aged 11 and up. Under 11, the head length can be 19–30 mm.

• Framing and background: head centered, full face visible, plain or light background, no shadows, and natural lighting.

• Additional quality notes: color photo, true likeness, no alterations, high resolution (commonly at least 400 dpi for prints).

Country-specific variations

• Netherlands (Dutch passport/ID): 35 mm x 45 mm; ear-to-ear width 16–20 mm; chin-to-crown length 26–30 mm (11+), 19–30 mm (under 11). Also requires sharpness, natural representation, and proper lighting.

• United States: Most US passport photos are submitted as digital images or paper forms; if printing, a common size is 2 x 2 inches (50 x 50 mm), but the passport book itself crops to the required dimensions. Digital photos must meet specific pixel dimensions and file size.

• United Kingdom: Printed photo standard is 45 mm high by 35 mm wide (the reverse orientation from the Netherlands). Must be a standard size used by photo booths.

• New Zealand: Passport photos must meet technical requirements, including pixel dimensions for digital uploads and specific size guidelines.

Practical tips

• Check the official passport office site for your country to confirm the exact required size and head position, as some countries have slightly different measurements or additional rules (e.g., glasses rules, background color, or head tilt).

• If you’re getting photos taken in a studio or by a kiosk, tell them your country and the passport type so they use the correct standard (and verify the final print size and cropping).

• For digital submissions, follow the stated pixel dimensions and file size limits; some programs require 600–3000+ pixels in width and height, with acceptable file types and maximum file sizes.

If you’d like, specify your country or the passport type (passport, ID card, or visa) and whether you need print or digital requirements. I can pull the exact official sizes and cutting tolerances for that case.