Can a size 40 male wear a size 40 female shoe? What is the difference between a size 40 female and a size 40 male?

When people buy shoes, they will choose according to their foot size. Some people think that if the men's size and women's size are the same, can they wear both? Generally, there is no difference in the insole length, but there will be slight differences.

No, generally you can’t wear it.

The sizes are different. Men's shoes size 40 is actually larger than women's shoes size 40. In China, the inner length of men's and women's shoes of the same size is the same, but the difference between men's and women's shoes is that men's shoes are wider than women's shoes. Men and women have different body structures, and men are usually bigger than women, so there are also differences in clothing and shoe design. In terms of shoes, although men's and women's shoes are the same size, men's shoes of the same style and size are wider than women's shoes, because men's feet are also wider. Therefore, when buying clothes and shoes, it is recommended that women and men buy women's shoes and men's shoes respectively. If a woman's feet are naturally wider, or if a woman's feet swell and become larger during pregnancy, you can also choose to buy men's shoes to try on.

The length of the same size shoes for men and women is almost the same, but the width is definitely different. First of all, the width of men's shoes is definitely wider than that of women's shoes. If your foot is 25 cm long, you should wear a size 40 shoe. So a size 40 men's shoe is about the same for you. Of course, if you are thin, you can choose a size 39 men's shoe. You can wear it. But it will squeeze your feet. This is because women's feet are smaller than men's feet. The span of the sole, the length of the toes, etc. Therefore, in the case of the same size 40, women's shoes will be smaller. About 0.4 cm. The foot length of a size 40 women's shoe is 24.6-25.0CM. The foot length of a size 41 men's shoe is 24.6-25.0CM. Looking at this data, it means: women's shoes 40 = men's shoes 41.

The sizes of men's and women's shoes are not universal, because the width of men's and women's shoes is different. Due to the difference in foot bones, men's shoes are relatively wider. When choosing, pay attention to the width and choose the right size. The inner length of men's and women's shoes of the same size in China is the same. For example, the inner length of a size 39 men's shoe is 24.5 cm, and the inner length of a size 39 women's shoe is also 24.5 cm. But in fact, the width of men's shoes is larger than that of women's shoes. Therefore, a size 39 women's shoe will be too tight for a size 39 man's foot. Therefore, when choosing shoes, you should choose the right shoes according to your foot width.

Shoe sizes in different regions include: UK sizes, US sizes, Japanese sizes, etc.

1. Europe: The shoe sizes in continental European countries such as France and Germany are generally calculated as follows, in centimeters: shoe size = 1.5*shoe last length = 1.5*(foot length + 2), but the specific size may vary slightly due to different properties of the shoe last.

2. North America: The shoe sizes in the United States and Canada are based on the length of the shoe last in inches: men's shoe size = 3*shoe last length - 22, women's shoe size (common) = 3*shoe last length - 20.5. In addition, there is a rare women's shoe size, proposed by the Footwear Industries of America: women's shoe size (FIA) = 3*shoe last length - 21. The shoe sizes for boys and girls are calculated based on the men's shoe size + 12.33.

3. Hong Kong: Hong Kong often uses American and European shoe sizes. Generally, Hong Kong men wear size 42-48 (European size) shoes, while women wear size 36-40 (European size) shoes. Generally speaking, the length of the foot determines the shoe size, but if the foot is wider (greater than 9.5cm) or thicker, you need to add half a size. For example, if the foot is 29.5-30.0cm long, you should wear size 46 (European size) shoes. If the foot is 27.5cm long, you should wear size 43 (European size) shoes.

4. Men's shoes: In the late 1960s, mainland China developed the "Chinese shoe size" based on the national foot length measurement. The length interval is 1 (1 cm) and the width is 1 (narrowest)-5 (widest). In 1998, the government issued the National Standard of the People's Republic of China GB/T3294-1998 based on the Mondopoint system and using millimeters as units. It is called the "new shoe size"; the shoe size in centimeters has been called the "old shoe size" since then. In the 21st century, all shoes on the mainland Chinese market are required to be marked with the new shoe size.

The conversion formula between the new and old shoe sizes is: new shoe size = (old shoe size + 10) / 2. (The new shoe size needs to be converted into units)

Example: If the old shoe size is 40, then the new shoe size = (40+10)/2=50/2=25cm=250mm, so the new shoe size is 250.

It should be noted that the old sizes in mainland China and the European sizes (France and EU) are fundamentally different and cannot be confused or used interchangeably. Hong Kong, China has always used the European size system, with the European size as the standard unit. Japan and mainland China have the same new shoe sizes, using the Mondopoint standard 5mm system.