40 x 50 mm Photo Maker
The 40 x 50 mm (4 x 5 cm) format is used by the documents listed below — each with its own head-height rule, so check yours before you crop. This page covers the format itself: exact sizes in millimetres, centimetres, inches and pixels, how many fit on a print sheet, and a free cropper with head-position guides. Everything runs locally in your browser: no ads, no watermark, and your photo is never uploaded.
Open the 40 x 50 mm photo maker →
40 x 50 mm in every unit
| Millimeters | 40 x 50 mm |
|---|---|
| Centimeters | 4 x 5 cm |
| Inches | 1.57 x 1.97 in |
| Pixels at 300 DPI | 472 x 591 px |
| Pixels at 600 DPI | 945 x 1181 px |
| Per 4 x 6 in sheet | 6 photos or more (the maker packs the sheet edge to edge automatically) |
Documents that use 40 x 50 mm photos
Every document in this app that uses the 40 x 50 mm format. The size is shared; the head height is not — open the one you need for its full requirements and official source.
| Document | Head height |
|---|---|
| Hong Kong Passport Photo | 32–36 mm from chin to crown — official published figure. |
Frequently asked questions
How many pixels is a 40 x 50 mm photo?
472 x 591 px at 300 DPI, or 945 x 1181 px at 600 DPI for high-quality printing. In inches that is 1.57 x 1.97 in; in millimeters 40 x 50 mm.
How do I resize a picture to 40 x 50 mm?
Open the free maker with this size preselected, upload any portrait, drag and zoom until the head sits between the guides, and download the exactly-sized JPG. No signup, no ads, no watermark — and your photo is processed entirely in your browser.
How do I print 40 x 50 mm photos?
Download the 4 x 6 in sheet — the maker packs as many 40 x 50 mm photos as fit and adds cut lines — then print it as a regular borderless 4x6 photo at 100% scale at any photo shop, pharmacy photo kiosk or at home.
Which documents use 40 x 50 mm photos?
Hong Kong Passport Photo.
Do all 40 x 50 mm photos have the same head height?
No. 40 x 50 mm is only the outer size of the print. Across the documents that use it, the required head height ranges from 32 mm to 36 mm from chin to crown, so a photo accepted for one may be rejected for another. Open the specific document above and use its preset.