What does 2x2 photo size mean?
It means the photo is exactly two inches wide and two inches high. Because the format is square, it behaves differently from the more common 35x45 mm portrait format used by many non-U.S. documents.
Exact-size guide
2x2 Passport Photo Size: Exact Dimensions, Pixels, cm, and Print Tips
A 2x2 photo measures 2 x 2 inches, which is the same as 51 x 51 mm or about 5.1 x 5.1 cm. This exact-size format is common for U.S. passport, visa, and green card style photo requirements, but the final digital rules can still vary by document and submission system.
2 x 2 inches51 x 51 mmabout 600 x 600 px at 300 DPIprint at 100% scale
Exact size
2 x 2 in
Square format. Do not stretch or crop it into a portrait ratio.
Metric equivalent
51 x 51 mm
Also approximately 5.1 x 5.1 cm.
Digital caution
Pixels vary
Print pixels are not always the same as a destination system's upload rules.
2x2 photo size in pixels
For printing at 300 DPI, a 2x2 image is about 600 x 600 pixels. Treat that as a print-preparation reference, not as a universal digital-upload rule.
Which documents use a 2x2 photo?
- U.S. passport photo requirements
- Many U.S. visa-related photo flows
- Green card and DV-lottery-adjacent image requirements
How to print a 2x2 photo correctly
- Print at 100% scale.
- Disable fit-to-page or automatic scaling.
- Use a print-ready layout instead of dragging the image into a document manually.
- Check the final physical size after printing.
2x2 vs 35x45 photo size
2x2
Square format, measured in inches, common in U.S.-style document flows.
35x45
Vertical metric format, common in many European and international documents.
Need the broader comparison? Open the passport photo size guide.
Common 2x2 photo mistakes
- Using a square crop with the wrong physical dimensions
- Printing with scaling enabled
- Treating a social-media square image as a valid document photo
- Assuming every 2x2 file is ready for every digital submission system
- Using the right size but the wrong background or face framing
- Confusing 2x2 with 35x45 or other passport-size editor presets
How PhotoID helps
Prepare the right 2x2 result before you print or submit
Use the exact-size preset, check common issues, and finish with a result ready for digital submission or print.
Choose the 2x2 format
Start with the exact-size preset so the app applies the correct square format.
1
Prepare the framing
Align the face and crop before export so the final image stays usable.
2
Check common issues
Review background, lighting, face position, and image quality before continuing.
3
Export the final result
Use the image for digital submission or a print-ready sheet, depending on the destination.
4
Related requirement pages
U.S. passport photo
2 x 2 inches
Use when you need the full U.S. passport rule set, not just the exact size.
U.S. visa photo
2 x 2 inches
Visa-specific requirements can overlap with 2x2 size but still need their own page.
Green card photo
2 x 2 inches
Useful when your flow includes digital-submission constraints in addition to size.
35x45 mm photo
3.5 x 4.5 cm
Open this if your document uses the common metric alternative instead of 2x2.
FAQ
What is a 2x2 passport photo?
A 2x2 photo is an exact-size image that measures 2 inches by 2 inches. It is strongly associated with U.S. passport, visa, and green card style document flows.
What is 2x2 photo size in cm?
A 2x2 photo is about 5.1 x 5.1 cm, which is the same as 51 x 51 mm.
What is 2x2 photo size in pixels?
There is no single universal pixel requirement, but a 2x2 print image at 300 DPI is about 600 x 600 pixels. Some online systems may ask for something different.
How do I print a 2x2 passport photo correctly?
Print at 100% scale and disable fit-to-page or automatic resizing. Even a small printer scaling adjustment can make the result non-compliant.
Which documents use a 2x2 photo?
The 2x2 exact size is common for U.S. passport, visa, and green card style photo requirements. Always confirm the exact document rules before using the final image.
What is the difference between 2x2 and 35x45?
2x2 is a square format measured in inches, while 35x45 is a vertical format measured in millimeters. They serve different document systems and should not be treated as interchangeable.
Create the exact 2x2 format
Create a correctly sized 2x2 photo in the app
Choose the 2x2 preset, run AI checks, and prepare a result for online submission or print-ready output.
Available on iOS and Android