United States Passport photo specifications
| Physical size | 51 × 51 mm · 2 × 2 in |
|---|---|
| Pixels at 300 dpi | 600 × 600 px |
| Pixels at 600 dpi | 1200 × 1200 px |
| Head size | 25–35 mm (1–1⅜ in), chin to top of head |
| Background | Plain white or off-white |
| Expression | Neutral expression or natural smile; both eyes open |
| Glasses | Not allowed except for a signed medical reason |
| Smile | A natural smile is accepted; keep both eyes open |
| File / print format | Color JPEG for online applications; matte or glossy photo paper for print |