What Does BM Mean In Shoes?

Shoe width is still something of a bother to many people. After all, they only worry about length.

Since width is indicated by letters, you will find A, AA, AAAA, B, C, D and so on when ordering your footwear online. Mostly, the widest size is EE in the USA.

As you can see, when buying a pair of boots, it might not be possible to know what the letter after the number means.

So what does BM mean in shoes? This means average or medium width for women. Whenever you see the B letter indicating width in shoes, it applies to women because in men’s width sizes, there is no B. Therefore, in this case the footwear is neither narrow nor wide.

Keep reading to see further clarification of the meaning of width lettering for shoes.

What does B mean in sneaker groups?

In the USA, the sizing for all shoes is indicated by numbers and letters. The numbers indicate the length size while the letters indicate the width size.

Many people don’t pay attention to the width sizings, only for them to find the shoes too narrow after they buy them. However, if you put your mind to it, it is actually not too hard to comprehend.

First, the sizes start from extra narrow (AAAA) for children or women with extremely narrow feet.

Since the footwear width is measured across the ball of foot, if it is A size, it is between 3.4 and 3.9 inches. Therefore, if a boot measures 3.4 inches, it may be labeled as AAA, 3.6 – AA and 3.9 B. This is just an example.

What is the difference between B and M in shoe size?

When it comes to the B size, in women’s footwear, this means wide. However, when it is followed by the letter M, it means medium wide.

Image of What does BM mean in shoe size

Most women’s width sizes fall in the B category, so it is the standard size for them. If you measure a B shoe across the ball of foot area, it is going to measure between 3.6 and 4.1 inches.

Therefore, going by the size of the narrow shoes, you will still find that some of the B size may still fall on the narrow side.

What does 8 B M US mean?

While we are still on the B sizing, we might as well answer this question. In this case, the number 8 represents the length size of the shoe.

This is number 8 for length and medium width. Therefore, it is a woman’s shoe because we have already said that B widths are too narrow for men.

If we were to look for the men’s equivalent of the same size, this would still have the label of 8 or 8.5D (M). However, for women, this would be number 10.

If you see the letter D after the length number, most likely, it is for men. But there are women with wide feet. So, in that case, their footwear would still indicate D, but this would be extra wide for female shoes.

Therefore, wide for men is extra wide for women.  

What does m mean in shoe size 

To reiterate, this means medium with. It is used after the letter for particular width. For example, if the shoe is wide for men, the width can be D (M), which means medium width.

This would be fitting for men who have narrow feet. The same width would also be appropriate for women with wide feet.


Hopefully, after reading this article on width size, knowing your foot width should be less confusing. We have answered the question of what does BM mean in shoes. It means women’s medium wide footwear and it applies across board on all closed shoes except boots, which always run a bit large.