What Does B Mean In Shoe Size? Understanding Width Measurements for Comfort
If you’ve ever been browsing shoes and spotted the letter ‘B’, you might’ve wondered what that’s all about. It’s actually pretty important when it comes to figuring out shoe widths, especially for women's shoes. A ‘B’ usually means a medium width, which is basically a sweet spot for comfort. It’s not too tight, not too loose—it’s just right.
Once you know what ‘B’ stands for, your shoe shopping can feel way less like a guessing game. You’ll be able to focus on finding styles that match your taste and support your feet the way they need.
Shoe Widths Explained: Important Considerations Before Shopping

Wide shoes are different from your standard pair mainly because they’re broader, but the length stays the same. The toe box is more spacious, perfect for people who need more room for their toes. But the heel stays pretty similar to a regular shoe to give you that support where you need it.
Two Approaches to Shoe Width
Shoe brands don’t always measure widths the same way, so it can get a little tricky. But here’s the general gist:
1. Letter-Based Widths
- A/2A/4A: These are narrow widths, with more ‘A’s meaning even narrower.
- B: For women, this is the middle ground, a standard width, but for men, it’s actually considered narrow.
- D: In men’s shoes, D is the go-to size, but for women, it’s on the wider side.
- E/2E/4E: The more E’s, the wider the fit. A 2E is wide, and 4E is really wide.
2. Size-Based Widths
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Narrow/Extra Narrow: For women, ‘A’ means narrow, and anything above ‘2A’ is extra narrow. For men, ‘B’ is narrow, and ‘A’ is even narrower.
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Medium Width (Standard): For women, ‘B’ is the standard width. For men, ‘D’ is typical.
-
Wide/Extra Wide: In men’s shoes, ‘D’ is the middle size, but in women’s shoes, it’s wide. Anything with ‘E’ is considered wide, and ‘2E’ or above is extra wide.
Remember, not every brand offers all these width options, so always check the sizing guide to make sure the fit is right for you.

Women’s Shoe Width Chart (Inches)
Shoe Size |
Narrow (A) |
Medium (B) |
Wide (C & D) |
5 |
2.8″ |
3.2″ |
3.55″ |
6 |
2.95″ |
3.3″ |
3.7″ |
7 |
3.5″ |
3.45″ |
3.8″ |
8 |
3.2″ |
3.5″ |
3.95″ |
9 |
3.3″ |
3.7″ |
4.05″ |
10 |
3.45″ |
3.8″ |
4.2″ |
11 |
3.55″ |
3.95″ |
4.3″ |
12 |
3.7″ |
4.05″ |
4.45″ |
Men’s Shoe Width Chart (Inches)
Shoe Size |
Narrow (C & B) |
Medium (D) |
Wide (E) |
5 |
3.2″ |
3.4″ |
3.6″ |
6 |
3.3″ |
3.5″ |
3.7″ |
7 |
3.4″ |
3.6″ |
3.8″ |
8 |
3.5″ |
3.8″ |
3.9″ |
9 |
3.6″ |
3.9″ |
4.1″ |
10 |
3.8″ |
3.8″ |
4.2″ |
11 |
3.9″ |
4.1″ |
4.3″ |
12 |
4.0″ |
4.3″ |
4.4″ |
Understanding the Meaning of 'B' in Women's Shoe Sizes
When you see a ‘B’ in women’s shoes, it’s pretty much the middle ground for width. It’s standard, meaning it’s made to fit most feet comfortably. If you see ‘M’ instead of ‘B’, it means the same thing—it’s the regular width for everyday wear.
In men’s shoes, however, ‘B’ is considered on the narrow side, and ‘D’ is the normal width. Keep in mind the width can change depending on the brand, so always check before buying.
What Does the Letter B Represent in Men's Shoe Terminology?
For men, ‘B’ represents a narrower fit, while ‘D’ is the typical width. Women’s shoes tend to be more narrow, so when men’s shoes are labeled ‘D’, that’s more of a standard fit for them. No width marked? It’s probably standard.
Two Simple Ways to Measure Your Feet at Home
1. Foot Tracing Technique:
Here are the right steps:
- Begin with two sheets of paper and a pen.
- Get your stance right. Position yourself on the sheets, placing one foot on each. Ensure you are standing normally without any awkward angles.
- Trace your foot. If feasible, ask a friend to trace around your foot. If you're alone, you can do this by using your free hand to direct the pen.
- Take your measurements. After tracing, use a ruler or tape measure to find the length of your foot. For width, measure the broadest area. This approach is basic and successful.
2. Flexible Tape or String Method
This procedure is also rather straightforward.
- Choose your tool. A flexible measuring tape is most suited for this task. If you don't have one handy, a piece of twine will serve.
- Position the tape or string. Stand up and insert the tape or string beneath the broadest area of your foot. Wrap it around snugly but not too tight.
- Mark where the tape or string overlaps. Step away to take a reading by verifying the tape or comparing the string to a ruler. This allows you to take accurate foot measurements without needing specialist equipment.

Frequently Asked Questions
How To Decode The 'H' In Shoe Sizes?
The letter ‘H’ can be a bit confusing—it usually means extra-wide in men’s shoes or a half-size (like 10½) for some brands. Not many women’s shoes use ‘H’.
Children's Shoe Width Measurements
Kids also get specific shoe widths. Depending on the brand and style, you’ll find charts that help you pick the right fit for their growing feet.
What Do B Or C Indicate In Shoe Sizes?
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B or M: This represents the normal width for women.
-
C or W: Indicates women's wide-width shoes.
-
A: Denotes women's narrow width.
These designations assist you in determining the proper fit for your footwear.
How To Assess If You Need Wide Shoes?
If your shoes fit in length but feel tight across the width, it might be time to go wide. It’s common to buy shoes too long to make up for width, but that usually just leads to an uncomfortable fit with too much space at the toes or heel. If you’re noticing blisters or discomfort, it could be a sign you need to try a wider option.
Do Feet Widths Change Over Time?
Yep, feet can get wider or change shape over time, especially with weight shifts or age. If your shoes suddenly feel tight, it might be time to go up a size or width.
Key Details to Note
A ‘B’ on women’s shoes usually means a medium, comfy fit—just right for everyday wear. And if you're struggling to find the right fit, consider customizing your shoes for that perfect match. With brands like Vessi, you can design shoes that fit your style and foot needs, so you never have to compromise on comfort. Understanding widths makes shopping easier, so keep these details in mind to avoid any shoe regrets down the line.