2x2 Inch Photo (51x51mm)
The most universally accepted square ID photo format, used for U.S., Indian, and many other countries' passports and visas.
Size & specifications
2x2 Inch Photo (51x51mm) — requirements
| Printed size | 51 × 51 mm |
|---|---|
| Digital size | 602 × 602 px |
| Head height | — |
| Background | White/Blue |
| Resolution | ≥ 300 DPI |
| Recency | — |
| Glasses / expression | — · — |
| Digital format | — |
One upload, two deliveries: the pixel-exact digital file and a 300 dpi print-ready sheet.
What each line means
Printed size — print at exactly 51 × 51 mm. A few millimetres off and most offices hand the form back before anything else is checked.
Digital size — the digital file must measure 602 × 602 px. Anything smaller gets refused by many online systems before a person sees it.
Background — a plain White/Blue background, with no shadows or gradients. A wall lit unevenly is the fastest route to a refusal.
Resolution — 300 dpi keeps a face sharp in print. Below that, features soften and agencies ask for a retake.
Photo examples
What passes — and what gets rejected.


How to take a 2x2 Inch Photo (51x51mm) with your phone
American square photo size
2×2 inches — 51×51 mm square — is the American photo size, using the name from the studio menu. The US passport, visa applications and the whole 2×2 family of documents use this square. This page covers the size; the document pages cover the head bands and background rules.
Square framing and head position
A square canvas is not a cropped rectangle. The head sits centred with equal margin on every side, and portrait framing habits can mislead the eye. The 2×2 family measures the head from chin to crown inside the square; the document page for your form carries the exact band.
Setup and lighting
Use a plain wall, frontal light, camera at eye level, and a natural shooting distance. White is the default across the US family; blue is registered for forms that name it. The tool sets either.
Output from this page
The preset crops to the exact 51×51 mm square at print resolution. Head position, background and ratio are checked before export.
Why 2x2 Inch Photo (51x51mm) gets rejected
Rectangle to square conversion
A 35×45 or 33×48 portrait cannot become 2×2 without either padding bars or a cropped head; both fail. A square photo comes from square framing.
Off-centre head in a square
In a square, the centre is measured both ways, and a head drifting toward one corner reads twice as wrong. Centre the subject before shooting; the square shows every lean.
Common faults
Shadows, tilts and off-colour walls are standard refusals for the square used across the 2×2 family.
How it works
Photo tips
Frequently asked questions
What size is a 2x2 Inch Photo (51x51mm)?
The standard size is 51 × 51 mm (602 × 602 px at 300 DPI). The tool crops and scales your photo to exact requirements automatically.
Can I smile in the photo?
Requirements call for: a natural expression. When in doubt, keep a neutral face with both eyes open.
How recent must the photo be?
Old photos are a common rejection reason.
Is my photo private?
Yes. Uploaded photos are encrypted in transit and automatically deleted within 24 hours. We never share or resell uploads.
White or blue background?
Both are in use depending on the application; pick the colour your form names — the tool sets it exactly.
Can I take it with my phone?
Yes. A plain wall, even light and an eye-level phone cover the square; the tool handles the crop and the background.