Women's 5 and men's 4 share this 220 mm foot, the one-number offset that runs through every unisex conversion and explains why men's and women's charts never line up.
Brand fit: Japanese 22.0 cm already folds in about 1 cm of toe room, so a JP 22 measures near 23 cm inside and cannot be matched to a Western 22 cm by arithmetic alone.
US to EU conversion
A women's US size plus 30 to 32 gives the EU number, the gap creeping up one point as the foot lengthens, so US 6 is EU 36 and US 10 is EU 42. Because EU counts smaller steps, a US half like 6.5 falls onto a whole EU 37, and the offset you use at US 5 is a number short by US 10. Reading the EU figure a brand lists avoids the drift, which is why converted charts disagree most at the top of the women's range.
At this size, US to EU
One size up from US 5, EU moves 0.5 to EU 35.5 while US rises 0.5 to US 5.5, holding their spacing. Both US 5 and EU 35 are whole numbers here, so nothing rounds. For US 5, the EU column here runs EU 34.5, EU 35, EU 35.5, stepping a half size at a time.
Size Chart US EU UK CM 4 34 2 21 4.5 34.5 2.5 21.5 5 35 3 22 5.5 35.5 3.5 22.5 6 36 4 23 6.5 37 4.5 23.5
Frequently Asked Questions Does US 5 round up or down in EU? EU 35, US 5 and UK 3 land whole here, so this exact length rarely faces a rounding choice; between sizes, the larger laces down more kindly than the smaller pinches.
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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.