What size are men's slippers 290? What year is this year? How to calculate?

The reference size table of shoe size is as follows:

The commonly used shoe size units in the world are European size, American size and millimeter number, and the corresponding conversion methods are as follows:

1, conversion between European code and centimeter unit: EUR= European code, number of centimeters × 2- 10 = European system, (European system+10)÷2= number of centimeters. 290 is a millimeter unit, which is equivalent to 29 centimeters. Converted into European code, it is equal to 29× 2- 10 = 48 code (European code).

2. In addition to the common British code = British code, some brands from Europe usually use British code, and the number of centimeters-18 = English, English+18= cm. 48 yards, that is, 29 centimeters, corresponds to English size =29- 18= 1 1 English size.

3, American code = American code, some brands from the United States usually use American code, centimeter number-18+0.5 = American, American+18-0.5 = centimeter number. 48 yards, that is, 29 cm, corresponds to the US code = 29-18+0.5 =11.5 yards.

Extended data

20 13 the shoe sizes adopted by countries all over the world are not consistent, generally including two kinds of measurements: length and width. Length refers to the length of the wearer's foot or the length of the manufacturer's shoe last. Even in the same country/region, different people and shoes with different uses, such as children and sports shoes, have different definitions of shoe sizes.

The Mondopoint shoe size system recommended by ISO standard ISO 9407 is based on the width and average length of feet, with millimeters as the basic unit. In the late 1960s, Chinese mainland formulated the "China Shoe Size" based on the national foot length measurement, with the length range of 1 (1 cm) and the width of 1 (narrowest) -5 (widest).

Chinese mainland's old code and European code (French code, EU code) are essentially different and cannot be confused or used interchangeably. China and Hongkong have always followed the European size system, taking the European code as the standard unit. Japan and Chinese mainland have the same new shoe size, using the standard Mondo 5 mm decimal system.

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