1. The size 125 shoes corresponds to European size 22.5, US children's size 6.5, and UK children's size 6, suitable for children with a foot length of 125 millimeters.
2. There are various methods of labeling shoe sizes, including international, European, American, and British standards.
3. The international standard shoe size is based on the millimeters of foot length.
4. China's standard uses millimeters or centimeters as the unit for shoe sizes. For instance, 123 millimeters is equivalent to 12.3 centimeters, representing the same shoe size in terms of length.
5. Different countries adopt different shoe size systems, but they typically consider both length and width dimensions.
6. Shoe length usually refers to the length of the wearer's foot or the manufacturer's last length.
7. Within the same country or region, shoe sizes for different populations and purposes, such as children's shoes and sports shoes, will have their unique definitions.
