2x2 vs 1x1 vs Passport Size
Side-by-side chart of 2x2 (5.08 cm), 1x1 (2.54 cm) and Philippine passport size (3.5 × 4.5 cm) in cm, mm, inches and pixels.
| Measure | 2x2 | 1x1 | passport size |
|---|---|---|---|
| Centimeters (W × H) | 5.08 × 5.08 cm | 2.54 × 2.54 cm | 3.5 × 4.5 cm |
| Millimeters | 50.8 × 50.8 mm | 25.4 × 25.4 mm | 35 × 45 mm |
| Inches | 2 × 2 in | 1 × 1 in | 1.38 × 1.77 in |
| Pixels at 300 dpi | 600 × 600 px | 300 × 300 px | 413 × 531 px |
| Copies per 4R (4 × 6 in) | 6 | 24 | 8 |
| Copies per A4 | 20 | 88 | 36 |
Who asks for this size
- PRC: Licensure (board) exam application (passport size) — 4 copies
- PRC: Initial registration (oath taking) (passport size) — 2 copies
- PRC: Professional ID renewal (passport size) — 1 copy
- PRC: ASEAN Architect / Engineer registration (passport size) — 4 copies
- CSC: Career Service Examination (pen and paper test) (passport size) — 4 copies
- CSC: Personal Data Sheet (CS Form No. 212, Revised 2026) (passport size) — 1 copy
FAQ
- Is 2x2 a passport size?
- No. 2x2 is a 5.08 cm square; Philippine passport size is a 3.5 × 4.5 cm rectangle.
- Which is bigger, 2x2 or passport size?
- 2x2 is bigger: 5.08 × 5.08 cm versus 3.5 × 4.5 cm.
- Can I cut a 2x2 down to passport size?
- Only if the head still fills the frame correctly. It is safer to crop the original photo to 3.5 × 4.5 cm.