3 x 4 cm Photo Maker
The 3 x 4 cm (30 x 40 mm) 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 3 x 4 cm photo maker →
3 x 4 cm in every unit
| Millimeters | 30 x 40 mm |
|---|---|
| Centimeters | 3 x 4 cm |
| Inches | 1.18 x 1.57 in |
| Pixels at 300 DPI | 354 x 472 px |
| Pixels at 600 DPI | 709 x 945 px |
| Per 4 x 6 in sheet | 10 photos or more (the maker packs the sheet edge to edge automatically) |
Frequently asked questions
How many pixels is a 3 x 4 cm photo?
354 x 472 px at 300 DPI, or 709 x 945 px at 600 DPI for high-quality printing. In inches that is 1.18 x 1.57 in; in millimeters 30 x 40 mm.
How do I resize a picture to 3 x 4 cm?
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 3 x 4 cm photos?
Download the 4 x 6 in sheet — the maker packs as many 3 x 4 cm 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.