At EU 25 a fitted shoe should still leave 12 to 17 mm in front of the toes, the range Austrian researchers set because a foot this age outgrows a 12 mm margin in about a month.
Brand fit: ASICS lasts run one width step roomier than JIS at this length, so a child needing JIS 2E fits ASICS E in a 15.5 cm shoe.
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 25, US moves 0.5 to US 9 while EU rises 1 to EU 26, so the two scales spread wider. EU 25 is whole but US 8.5 carries a half, so a rack of full sizes only rounds to the nearest. For EU 25, the US column here runs US 8, US 8.5, US 9, stepping a half size at a time.
Size Chart EU US UK CM 24 8 7 15 25 8.5 7.5 15.5 26 9 8 16 27 9.5 8.5 16.5 28 10 9 17
Frequently Asked Questions Does EU 25 round up or down in US? Round up rather than down: a growing foot closes a larger gap fast, while a short shoe forces the toes to curl. The plus12 gauge adds the first 12 mm for you.
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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.