2x2 Photo Size Guide for US Passport and Visa Photos

2x2 Inches Is the Standard US Photo Format

The 2x2-inch photo size is most closely associated with US passport photos and US visa applications. In metric terms, that is approximately 51x51mm, and digitally it usually means a square image.

• US passport photos use 2x2 inches.
• US visa DS-160 uploads also use a square digital photo.
• The size may overlap, but the submission workflow is not always identical.

Why a 2x2 Photo Can Still Be Wrong

A photo can be square and still fail because of head height, expression, file size, or digital upload requirements.

• DS-160 has strict JPEG and file-size expectations.
• Passport workflows can include print or online renewal requirements.
• Glasses, shadows, and off-background colors still trigger rejection even when the size is right.

When to Use a 2x2 Checker

If you are applying for a US passport or uploading a US visa photo, use the document-specific checker instead of relying on size alone.