Ever noticed letters like D, E, or H on a shoebox and wondered what they mean? Those codes are shoe widths, and they matter just as much as size. The problem is, each country and brand uses its own system.
What’s a standard width in the UK might be considered narrow in the US, and European brands often don’t label widths at all. This guide cuts through the confusion so you can decode width letters and charts, and finally match your foot to the right shoe.
To see how width codes translate into real comfort, check out our Wide Fit Shoes Guide
Getting to Know Shoe Widths
Shoe width is measured across the ball of your foot, not the toe or heel — and it matters just as much as length does. If you’re wondering whether you have a wide foot, it usually means this part of your foot is broader than average for your shoe size.
Get the width wrong and you’ll know about it. Too narrow and your foot feels pinched and sore by mid-afternoon. Too wide and your foot slides around inside the shoe, which causes its own problems — rubbing, blisters, and general instability. Getting it right is worth the five minutes it takes to check.
If you’re still getting to grips with the basics, I’ve written a simple explainer covering what wide fit actually means before diving into the specific width letters below.
Decoding Width Codes: UK, US, EU & Beyond
Shoe width codes go way beyond just “narrow” or “wide,” and brands use specialized systems that might leave you scratching your head. So, let’s break them down.
Some brands, particularly German ones like Waldläufer, use a completely different lettering system (G, H, K, M) instead of E/EE/EEE. I’ve explained exactly how these compare in G, H, K, M: What Do German Shoe Width Letters Actually Mean?
- US System: Sizes run from 4A (narrowest) through to 6E (widest). For women, the scale goes AAA, AA, A, B, C, D, E, EE — with B generally counting as a standard, medium width.
- UK System: The UK uses letters too, usually from B (narrow) up to H (extra wide). Here, shoe width sizes like F are standard, G is wide, and H is extra wide.
- EU System: European shoes are often made in one standard width, though brands may label widths as F (comfort fit), G (wide), H (extra wide), and K (ultra wide).
Not sure what your width actually is? Start with our step-by-step guide on how to measure foot width at home. It only takes a few minutes and gives you the numbers you’ll need to make sense of shoe width codes.
Here’s a UK sizing chart as a reference:
| UK SHOE SIZE | COMFORT FIT (D) | WIDE FIT (E) | EXTRA WIDE FIT (EE) | ULTRA WIDE FIT (EEE) |
|---|---|---|---|---|
| 3 | 210–215mm | 216–221mm | 228–233mm | 241–246mm |
| 4 | 216–221mm | 222–227mm | 234–240mm | 247–253mm |
| 5 | 222–227mm | 228–233mm | 241–246mm | 254–259mm |
| 6 | 228–233mm | 234–240mm | 247–253mm | 260–265mm |
| 7 | 234–240mm | 241–246mm | 254–259mm | 266–271mm |
| 8 | 241–246mm | 247–253mm | 260–265mm | 272–277mm |
| 9 | 247–253mm | 254–259mm | 266–271mm | 278–283mm |
The main thing to remember is that these letters are guidelines, not strict standards. Wide shoe widths from one region could fit more like standard in another, so it’s always smart to check actual width measurements, especially when buying from brands outside your home country.
Shoe Width Code Reference Table
Different brands use different letters for the same thing, which is half the confusion. Clarks uses C for standard, D for comfort, E for wide, and EE for extra wide. German brands often use F for standard instead. When in doubt, don’t guess — check the brand’s own chart, because their letters won’t always match anyone else’s.
Of course, not everyone needs extra room — if your feet are on the narrower side, I’ve covered what to look for in The Best Shoes for Narrow Feet.
What Do Dual Fitting Shoes and Removable Insoles Do?
If you’ve ever been stuck between two widths, or your feet swell through the day, dual fitting shoes are worth knowing about. They use a removable extra insole, so you get a snugger fit with it in, and a little more room with it out — handy for warm weather, travel, or simply feet that change size depending on the day.
It’s also genuinely useful if you wear orthotics, or if — like a lot of people — one of your feet is a touch wider than the other.
Recognising If You Need a Different Width
If your toes are constantly sore after a walk, or the sides of your feet seem to spill over the edges of the sole, the shoes may simply be too narrow rather than too short.
If you take your shoes off and notice redness, rubbing or deep pressure marks around the sides of your feet or toes, your shoes may be too tight in those areas.
Wearing shoes that are either too narrow or too wide can quickly become uncomfortable From my own experience with arthritis and feet that have changed after surgery, I’ve learned that squeezing a wider foot into a standard-width shoe usually means uncomfortable feet by the end of the day.
A shoe that’s actually made on a wider last can be a better option than simply sizing up. It gives a wider foot more room across the forefoot without necessarily making the shoe too long.
Some signs that the fit may not be right include:
- Toes feel squeezed or rub.
- The top or sides of your toes are sore or red.
- Your foot bulges over the sides of the sole.
- You can see persistent pressure marks after taking the shoes off.
Things That Make Shoe Widths Vary
Width codes only tell part of the story. Material matters too — leather has a bit of give and will stretch slightly with wear, while synthetics tend to hold their shape. Athletic brands sometimes build in extra room even at “standard” width, though that’s never guaranteed, so it’s still worth checking.
Insole structure and arch support change how a width feels as well. A shoe that’s perfect in one brand can feel snug in another at the exact same width code, simply because of how the footbed is built.
If you wear orthotics or supportive insoles, remember that the insert itself takes up room inside the shoe. A removable footbed or a wider fitting can sometimes give you the extra space you need.
I always double-check my own width with a ruler across the ball of the foot before I compare it to a brand’s chart — it’s saved me more than one disappointing parcel over the years.
If your shoes are wide enough but still feel tight across the top of your foot, width may not be the problem. Read How to Choose Shoes for a High Instep.
Tips for Getting the Right Fit
- Measure your feet at the end of the day; feet swell and you want shoes to fit when they’re at their biggest.
- Wear the same type of socks when trying on shoes as you’ll wear regularly.
- Check if your favourite brand has its own width chart.
- If your foot is between widths, try shoes with removable insoles or dual fitting options.
From my own experience, I always double-check my shoe width using a millimetre ruler across the ball of the foot — then I compare it with the brand’s chart. Doing this has saved me money and a load of frustration.
📘 If getting your width right feels like the missing piece, I’ve pulled everything I’ve learned about fit, sizing and choosing shoes that actually work into The Wide Fit Shoe Survival Guide — the practical companion to everything on this page.
Frequently Asked Questions
Q: What are wide shoes?
A: Wide shoes are designed with extra space across the ball of the foot. They often have additional room in the toe box and midfoot areas, which helps avoid pinching or rubbing if your feet are broader than average.
Q: What does B mean in shoe width?
A: In women’s shoes, a “B” width usually means a standard or medium fit. For men, B is often considered narrow. It’s always best to check the brand’s chart, as interpretations can vary.
Q: How do I know if I need wide fit shoes?
A: If your feet feel tight, tingly, or rub at the sides even when the length is correct, you may need a wide fit. Red pressure marks, numb toes, or “spilling” over the sole edge can also suggest that the fit isn’t right.
Whether you’re shopping for fashion or comfort, getting familiar with wide shoe widths and how they’re labelled will help you find shoes that truly fit.
Are you ready for some more reading to help with footwear choices? Read My Complete Wide Fit Shoes Guide
About Sue Holland
Sue writes WiderFittingShoes.com from first-hand experience of finding footwear for wide and difficult-to-fit feet. After two hip replacements, two ankle replacements and years of dealing with arthritis, swelling and feet that don’t always behave the same from one day to the next, she shares the practical things she’s learned about shoe fit, width and comfort.