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 UK conversion
From centimetres to women's UK the offset stays at 19 across the range, so 24 cm is UK 5 and 27 cm is UK 8. As with the US pair the UK number is derived from the foot length, so clean centimetre feet give clean whole UK sizes. Feet that measure to a half centimetre land between two UK numbers, and there the larger size laced down holds better than the shorter one crushing the toes.
At this size, CM to UK
One size up from 25.5 cm, UK moves 0.5 to UK 7 while the metric length rises 0.5 to 26 cm. Both 25.5 cm and UK 6.5 sit on a half step at this size. For 25.5 cm, the UK column here runs UK 6, UK 6.5, UK 7, 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
UK 6.5 . 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 UK? 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.