Resize an image in millimetres
To resize an image in millimetres, choose mm, type the width and height and pick the DPI. A 35 × 45 mm passport photo is 413 × 531 pixels at 300 DPI. The tool does the conversion (pixels = mm ÷ 25.4 × DPI) and shows the result before you download.
Free · no signup · your files never leave your device
How it works
- Drop your picture into the box above, or paste it with Ctrl+V.
- Choose how to set the size and type the new numbers. The other side follows so the picture is not stretched.
- Check the result, then download it.
Photo sizes in millimetres, as pixels
- 35 × 45 mm (India, UK, Schengen): 413 × 531 px at 300 DPI, 207 × 266 px at 150 DPI, 99 × 128 px at 72 DPI
- 51 × 51 mm (US 2×2 in): 602 × 602 px at 300 DPI, 301 × 301 px at 150 DPI, 145 × 145 px at 72 DPI
- 33 × 48 mm (China visa): 390 × 567 px at 300 DPI, 195 × 283 px at 150 DPI, 94 × 136 px at 72 DPI
- 30 × 40 mm (exam, ID): 354 × 472 px at 300 DPI, 177 × 236 px at 150 DPI, 85 × 113 px at 72 DPI
- 50 × 70 mm (Canada): 591 × 827 px at 300 DPI, 295 × 413 px at 150 DPI, 142 × 198 px at 72 DPI
- 25 × 35 mm (stamp size): 295 × 413 px at 300 DPI, 148 × 207 px at 150 DPI, 71 × 99 px at 72 DPI
- 45 × 45 mm (Japan visa): 531 × 531 px at 300 DPI, 266 × 266 px at 150 DPI, 128 × 128 px at 72 DPI
Need a full passport photo?
Resizing to 35 × 45 mm gives you one photo. To place the head correctly, set a plain background and print several on one sheet, use the passport photo maker.
Questions people ask
What is 35 × 45 mm in pixels?
413 × 531 pixels at 300 DPI, or 207 × 266 pixels at 150 DPI.
How do I convert mm to pixels?
Divide by 25.4 and multiply by the DPI.
Can I make a print sheet?
Yes, in the passport photo maker, which lays out the photos on a 4×6 inch or A4 sheet.
Is it free?
Yes. There is no signup, no watermark and no limit on how many pictures you resize.
Is my picture uploaded?
No. The picture is resized inside your browser, so it never leaves your device.