What Does M Mean in Shoe Size: Difference Between BM & DM

Finding a pair of shoes that fit you perfectly is not as simple as you might think. Going to the store, trying on shoes, and selecting a pair that makes you feel comfortable aren’t always enough to find the right shoes. Are you certain you know everything about the shoes you are wearing?

It’s a challenge when you notice a lot of different letters on your shoes and do not understand what they indicate. M, B, D, D(m), B(m),… are all letters that can be seen on shoes and must tell you something about the shoes you want to buy. You might come up with many questions, such as what does M mean in shoe size? What does D(m) mean in shoe size? What does M stand for in shoe size? Without giving you any more headaches, all questions will be explained in this article.

How to Tell Apart Different Shoe Widths

The length of your feet is only half of the story in US measurement. The feet width is also crucial when choosing the right pair of shoes. Most people are just concerned with the length of their feet, overlooking or ignoring the width. However, without the width, you wouldn’t be able to enjoy the extra comfort.

So, all the letters that appear on shoes indicate the width of your feet. There are several categories of shoe widths ranging from the narrowest AAA to the widest EEE. Men’s shoes usually start at B, then D, EE and EEE. For men, the standard size is D. Women’s shoe widths range from AAA to EE, with the size B being categorized as medium.

Shoe size M Meaning

If you found the letter M in shoe size, it means medium width. It is appropriate for feet that are neither too narrow nor too wide. The M abbreviation indicates that the pair of boots is of average width.

What Does M Mean in Women’s Shoe Size

If you see the letter M on a women’s shoe tag, it denotes that the shoe is of average size. The abbreviations M and B have the same meaning in this case. Because M stands for “medium,” it can be used in place of B, which refers to the standard width of women’s shoes. Similarly, the letter W (Wide) will be used instead of C/D for wide women’s shoes, which denotes a large size.

So now you know M stands for medium shoe width. However, reading the full description of shoe width is more challenging. For instance, what does 7M US mean in shoe size?

Here, women’s 7M US is size 7 with regular foot width. 7 denotes the length of your feet, whereas M illustrates the breadth of your feet. Meanwhile, size 7W US is for wide feet, which have more room than 7M. And 7N shows the narrow feet.

B(m) meaning in shoes

B(m) meaning shoes with a regular width for women. The first letter stands for regular women’s shoes in the United States, while the second stands for an average width. Men’s shoes rarely have a B(m) marking because their feet are typically wider. Therefore, whenever you see B(m) on a pair of shoes, that means it is for women. For example, the indicator 9 B(m) means a pair of women’s shoes size 9, which is equivalent to size 7 in men’s shoes.

D(m) meaning in shoes

Like women, men also have a standard size of shoes marked as D(m). It is more challenging because D-width shoe sizes are available for both men and women. D in men’s footwear, on the other hand, denotes medium, and D in women’s footwear denotes wide. Ranging from 3 to 5 inches across the ball of the foot, D(m) size is usually found in men’s shoes rather than women’s. However, some ladies who have wider feet could have D(m) size, and many shoe brands now change their measurement to assist them in finding the perfect shoes.

B(m) vs D(m) shoe size

The fascinating thing is that you can tell which gender the shoes belong to just by looking at the tag. Why is B(m) vs D(m) shoe size so different? The reason is size B indicates medium width for women, whereas size D denotes a medium width for men.

So if you see B(m) on the shoe tag, you’re definitely looking at a pair of women’s shoes; if the abbreviation D(m) appears on the tag, you’re looking at a pair of men’s shoes. You can avoid buying the wrong shoes of the other gender merely by looking at the shoe width description, because men’s and women’s shoes aren’t always that different.

How to Distinguish Men’s and Women’s Shoe Width

There must have been many incidents of people buying men’s or women’s shoes by mistake because they couldn’t tell the difference between men’s and women’s shoe widths, especially for misleading types of shoes like sports shoes and running shoes.

Men’s shoes are normally 1.5 to 2 inches wider than women’s shoes because of the design of the foot. The shape of men’s feet is broader, while women’s is narrow and delicate. Furthermore, men’s shoes are frequently made to cover their entire feet, whereas women’s shoes emphasize the heel. That explains why AAA is the shoe width only tailored for women, and EEE is only for men.

Does Shoe Width Matter

Most people are unconcerned about the width of their shoes when shopping. The reason is that you won’t be able to fit if you wear shoes that aren’t the same length as your size. However, you can still wear shoes with a slightly different width.

This can lead to some hilarious situations, such as when you try on shoes that are the right length for your feet but still feel a little tight, and you assume it’s because the shoes are new and stiff. Everything will be fine when you wear them more. But after a few weeks, even months, you still feel uncomfortable in your shoes and don’t understand why.

This shows that the width of the shoe is as important as the length. To experience the best comfort, you must not underestimate the width of your feet. Foot injuries can be avoided by wearing shoes that are the right length and width.


The letters M, B, B(m) or D(m) illustrate the width of the shoes. M means the average width size, B(m) is a medium size for women and D(m) is a medium size for men. Knowing that will help you understand the meaning behind all the parameters appearing in the US shoes.

Because there are so many letters, it appears complicated to remember all the shoe width indicators. Nevertheless, knowing which one is the standard size for women and men will assist you avoid buying the wrong shoes.

We hope this article on what does M mean in shoe size has helped you understand what M stands for in shoe size and what B(m) and D(m) mean. And you can purchase the best shoes which fit you perfectly in both length and width.

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