600 pixels.
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Size guide · October 2026
UK passport photo size: pixels, file size and 45×35mm prints
The correct “size” depends on whether you are applying online or on paper. Digital photos use pixel/file-size rules; printed passport photos use millimetres.
Digital photo size
Online applications do not use the printed 45×35mm measurement.
Current GOV.UK guidance requires a digital photo to be at least 600 pixels wide and 750 pixels tall, with a file size of at least 50KB and no more than 10MB.
750 pixels.
50KB to 10MB.
No fixed digital millimetre size: do not resize a digital upload to 35×45mm just because that is the standard printed passport-photo size.
Printed passport photo size
Paper applications need 2 identical 45×35mm photographs.
- 45mm high × 35mm wide
- Not a cut-down version of a larger picture
- Crown of head to chin between 29mm and 34mm
- Professional standard, clear and in focus
- Plain white photographic paper with no border
- Cream or light grey background
- Unaltered by computer software
The facial measurement applies to printed passport photographs. It is not a pixel rule for online uploads.
Common size mistakes
Avoid mixing digital rules with print rules.
Online applications care about pixels and file size, not a fixed millimetre canvas.
Paper passport applications require 2 identical printed photographs.
When using your own device, GOV.UK says not to crop the photo yourself.
Use the web or app route
Our iOS and Android app links are available if you want to start from your phone.
FAQs
UK passport photo size questions.
Is UK passport photo size 35×45mm or 45×35mm?
Printed UK passport photos are 45mm high and 35mm wide.
What pixel size is a UK passport photo?
For an online application, the current minimum is 600 pixels wide by 750 pixels tall.
What file size is allowed?
Current GOV.UK guidance says 50KB to 10MB.
How large should the face be on printed photos?
The distance from the crown of the head to the chin must be between 29mm and 34mm.
Use the right measurement