EU 40 in women's shoes tops out many European ranges, where 40 or 41 is the largest size a mainstream line cuts before switching to a large-size label.
CM to EU conversion
Converting centimetres to women's EU adds 13 to 15, the increment rising because EU numbers do not match millimetres one to one. So 23 cm reads EU 36 and 27 cm reads EU 42, and a half centimetre of growth moves EU by a full point in some places and only a half in others. Since a European last runs longer than the foot, two shoes both marked at your centimetre length can still fit apart, so read the EU result as an opening bid.
At this size, CM to EU
One size up from 25.5 cm, EU moves 0.5 to EU 40.5 while the metric length rises 0.5 to 26 cm. 25.5 cm is itself a half step yet meets a whole EU 40. For 25.5 cm, the EU column here runs EU 39, EU 40, EU 40.5, stepping a half size at a time.
This women's page reads 25.5 cm against
one gender grid, because men and women share a foot length but not a size
number: the same 25.5 cm in men's shoes is
EU 40 . Most charts pick a
gender without saying so, which is why a bare size search returns answers that
disagree by a full number.
Foot length vs shoe length
A CM shoe size is your measured foot length, not the space inside the shoe.
Brands add 0.5 to 1.0 cm of toe room so your toes clear the front. Japanese cm
labels already include about 1 cm of it, so a JP 24.0 measures near 25 cm
inside; an EU number instead describes the last. That built-in gap is why
conversion tables disagree.
Why one foot length gives many sizes
Size Chart CM EU US UK 24 37.5 7 5 24.5 38 7.5 5.5 25 39 8 6 25.5 40 8.5 6.5 26 40.5 9 7 26.5 41 9.5 7.5 27 42 10 8
Frequently Asked Questions Does 25.5 cm round up or down in EU? US 8.5 and UK 6.5 are halves while EU 40 is whole, so an EU start rounds nowhere; between sizes, the larger with a snug lace holds better than the smaller.
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Note Based on Mondopoint standard (foot length in mm) Women's sizing differs from men's by approximately 1.5 US sizes Heel height affects fit - measure standing Shoe sizes can vary by brand and style See a number that looks off? Report an error on this page.