EU 28 lands near age four or five, where a large Austrian study of 858 children found 69 percent were wearing street shoes too short for their feet.
Brand fit: Each JIS width grade adds about 6 mm of girth at a fixed length, so a 17.0 cm shoe in F wraps a fuller foot than the same length graded D.
EU to US conversion
EU to US kids' sizing runs smoothly until EU 34, where the US column restarts at 1, so EU 34 is US 1 rather than the US 13.5 just before it. EU 33 is US 13, then the next size up drops to US 1 while the foot keeps growing. Because the US number falls as the shoe gets bigger here, matching by the EU value or the millimetre length is the only safe way through the jump.
At this size, EU to US
One size up from EU 28, US moves 0.5 to US 10.5 while EU rises 0.5 to EU 28.5, holding their spacing. Both EU 28 and US 10 are whole numbers here, so nothing rounds. For EU 28, the US column here runs US 9.5, US 10, US 10.5, stepping a half size at a time.
Size Chart EU US UK CM 25 8.5 7.5 15.5 26 9 8 16 27 9.5 8.5 16.5 28 10 9 17 28.5 10.5 9.5 17.5 29 11 10 18 30 11.5 10.5 18.5
Frequently Asked Questions Does EU 28 round up or down in US? The finding argues for rounding up and checking fit often: a foot at this stage adds about 1 mm a month, so today's perfect length is next season's pinch.
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Note Kids sizes transition to adult sizes around EU 38 / US 5 Children's feet grow rapidly - remeasure every 3-4 months Allow 10-15mm growing room when fitting Shoe sizes can vary by brand and style See a number that looks off? Report an error on this page.