European shoesizes are use on the European continent (Belgium, Netherlands, France, germany, italy, Spain, etc..) There is only one scale (for men, women or children), which makes it easier than other shoe size measurement systems.
Formula from inches
(3.81 x Last length in inches)
Formula from centimeters
(1.5 x Last length in cm)
European shoesizes are based on the lastlength in centimeter (1.5 x length of the last in cm).