US 4Y=EU 36, US 4.5Y=EU 36.5, US 5Y=EU 37.5, US 5.5Y=EU 38, US 6Y=EU 38.5, US 6.5Y=EU 39, US 7Y=EU 40, US 8=EU 41, US 8.5=EU 42, US 9=EU 42.5, US 9.5=EU 43, US 10=EU 44, US 10.5=EU 44.5, US 11=EU 45, US 12=EU 46, US 13=EU 47.5