50 mm in Pixels
50 mm (5 cm) converts to 189 pixels at 96 DPI or 591 pixels at 300 DPI. This measurement is used as both the width and height of a square OCI Card photo (50x50 mm), and as the width of several European and Canadian passport photo formats. The US equivalent is approximately 2 inches.
50 mm at 96 DPI
189 px
50 mm at 300 DPI
591 px
50x50 mm square (OCI)
591 x 591 px
Same as
5 cm or ~2 inches
50 mm ≈ 2 inches. For US passport/visa photos (exactly 2x2 inches), the official size is 600x600 px. Use the dedicated US Visa Photo Maker for that standard.
50 mm at different DPI resolutions
Rounded to nearest pixel. 50 mm = 5.0 cm = 1.9685 inches.
| DPI | 50 mm (single side) | 50x50 mm (square) | Common use |
|---|---|---|---|
| 96 DPI | 189 px | 189 x 189 px | Screen display |
| 150 DPI | 295 px | 295 x 295 px | Medium-quality draft |
| 200 DPI | 394 px | 394 x 394 px | Online portals (minimum) |
| 300 DPI | 591 px | 591 x 591 px | OCI Card, EU passport (official) |
| 600 DPI | 1181 px | 1181 x 1181 px | Archival / high-res scanning |
Quick answers
50 mm at 300 DPI
591 px
50 mm at 96 DPI
189 px
50x50 mm at 300 DPI
591 x 591 px
50 mm in inches
1.9685 inches (≈ 2 inches)
50 mm in cm
5.0 cm
How to use the answer
Identify whether the spec is 50 mm or 2 inches
50 mm ≈ 2 inches, but they produce slightly different pixel counts (591 vs 600 at 300 DPI). If your form says '2 inches', use 600x600 px. If it says '50 mm', use 591x591 px.
Check OCI card face placement rules
OCI Card photos require 80% face coverage with the head centered. The background must be plain white. Glasses are not permitted.
Export as JPEG under file size limits
Most portals require JPEG/JPG format. OCI and EU portals typically accept files under 200KB-300KB. Use our compressor if needed.
Frequently asked questions
How many pixels is 50 mm?
50 mm equals 591 pixels at 300 DPI (print/official standard) and 189 pixels at 96 DPI (screen display). The formula is: pixels = (mm x DPI) / 25.4.
Is 50 mm the same as 2 inches?
Nearly. 50 mm = 1.9685 inches, which is approximately 2 inches but not exactly. At 300 DPI, 50 mm = 591 px while 2 inches = 600 px. If your form specifies '2 inches' (like US passport), use 600 px. If it specifies '50 mm' (like OCI), use 591 px.
What is a 50x50 mm photo used for?
A 50x50 mm square photo is the standard for Indian OCI (Overseas Citizenship of India) Card applications. Some European countries also use 50x50 mm for their national ID cards. At 300 DPI, this is 591x591 pixels.
Which DPI should I use for a 50 mm photo?
Use 300 DPI for government and immigration applications. This gives you 591 pixels per 50 mm side. Use 200 DPI (394 px) only if the portal explicitly states a lower resolution is acceptable.
Bharat Kumar G.verified
Technical SEO & Document Processing Expert
Bharat is the founder of ReadyToSubmit. With years of experience in technical web development, he builds privacy-first, client-side tools to help Indian government exam aspirants format their applications accurately and securely without server uploads.