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Resize Image in MM

Work in millimetres for document photo standards like 35 × 45 mm, with DPI-aware output.

The Unit Document Photos Are Specified In

Most passport and identity photo standards outside the United States are written in millimetres - 35 × 45 mm is the European and Indian norm, and several others are close variations. Millimetres are precise enough that you can type the specification straight from the form without rounding. As with any physical unit, the pixel output depends on DPI: at 300 DPI a 35 × 45 mm photo becomes 413 × 531 pixels, which is what the downloaded file will contain. The live output line under the preview always shows the pixel result, so you can confirm it against any pixel requirement the same form might also list.

How to Resize an Image

1

Upload your image

Choose a JPG, PNG, WebP, or GIF file. The tool shows its original dimensions and file size straight away.

2

Enter the new size

Pick a unit, type a width or height, and leave the lock on to keep the proportions. Presets like 300 × 300 and 1920 × 1080 are one tap away.

3

Download the resized image

Choose an output format and quality, then save the file at exactly the dimensions you set.

Standards Written in Millimetres

  • 35 × 45 mm passport and visa photographs
  • Identity card photos for European and Asian documents
  • Photos for driving licence and permit applications
  • Images placed into a print layout measured in mm
  • Stickers and labels produced at an exact physical size
  • Any specification quoting millimetres rather than pixels

Resizing in Millimetres

What is 35 × 45 mm in pixels?

413 × 531 pixels at 300 DPI. Change the DPI field and the pixel output recalculates - the exact figures are shown under the preview.

Is 35 × 45 mm the same as 2 × 2 inches?

No. 2 × 2 inches is a 51 × 51 mm square used mainly in the United States, while 35 × 45 mm is a taller rectangle used across Europe and much of Asia.

Which DPI do passport offices expect?

300 DPI is the usual minimum for a printed document photo, and it is the default here.

Do I still need to compress the result?

Only if the form also states a file size limit. Dimensions and file size are separate requirements.