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51×51 mm photo size

58 documents in 41 countries are issued from a 51×51 mm photo. It is the everyday passport and ID format outside North America, and the numbers below are the ones those offices measure.

Quick facts

Photo size
51×51 mm
Digital size
602×602 px
Head height (chin to crown)
25–35 mm
Background colour
#FFFFFF
Print resolution
300 DPI
Documents at this size
58
Countries using this size
41

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51×51 mm photo size

We check every rule above before you pay.

Questions about 51×51 mm photos

How many pixels is a 51×51 mm photo?
A 51×51 mm photo is 602×602 px at 300 DPI. Anything smaller is upscaled when it is printed and loses the detail the clerk checks.
How big should the head be in a 51×51 mm photo?
The head should measure 25–35 mm from chin to crown, centred in the frame, with the eyes looking straight into the lens.
What background does a 51×51 mm photo need?
Most documents at this size ask for #FFFFFF: plain, evenly lit and with no shadow behind the head. Check your own document's page for its exact colour.
How do I print a 51×51 mm photo at home?
Print the sheet we generate on 10×15 cm or A4 photo paper at 300 DPI and cut along the guides. The sheet already repeats the photo at exactly 51×51 mm.

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