Passport Photo Size in Pixels for Online Forms: 35x45 mm, 2x2 Inch and More
Convert photo sizes from millimetres and inches to pixels, and prepare a passport style photo for online forms under the KB limit. Free, in your browser.
Printed photo sizes come in millimetres or inches, but online forms measure pixels and kilobytes. This guide gives the conversions for the common photo sizes and links to free tools that create the file for you in your browser.
The formula
Pixels = inches × dots per inch (dpi). One inch is 25.4 mm. At 300 dpi, which is the usual print quality, 35 mm is 413 pixels and 45 mm is 531 pixels.
Quick answer
| Photo size | Pixels at 300 dpi | Tool |
|---|---|---|
| 35 × 45 mm (passport style) | 413 × 531 | Passport photo 35x45 mm |
| 40 × 50 mm | 472 × 591 | Photo 40x50 mm |
| 2 × 2 inch (US visa) | 600 × 600 | Photo 2x2 inch |
| 20 × 25 mm (stamp size) | 236 × 295 | Stamp size photo |
| 4 × 6 inch print | 1200 × 1800 | Photo 4x6 inch |
| A4 page | 2480 × 3508 | A4 picture size |
Preparing the photo
- Use a recent photo with a plain light background, even light and a neutral expression.
- Keep your head centred with a little space above it.
- Add it to the matching tool; it is scaled and cropped from the centre without stretching.
- Download the JPG and check the size shown.
For official documents, always check the exact requirements of the authority, because rules about background colour, head size and glasses differ by country.
Printing several photos on one sheet
Use Photo Print Layout to place copies on a sheet for the photo shop, or Passport Photo for the full editor with background and face guides.
Privacy
Photos are processed in your browser and never uploaded.
Frequently asked questions
Is 300 dpi enough? Yes for most photo prints and forms.
What if the form wants a size in KB too? Use compress image to 100 KB or the 300 × 300 page, which sets pixels and size together.
