Shoe Size Conversion Chart for US, UK, EU, and CM: Men’s, Women’s, and Kids’ Sizes

Overview

If you want a quick answer, start here: shoe size conversion is helpful, but it is never the full story. A size label is only a starting point. The actual fit depends on the brand, the shape of the shoe, the materials, the intended use, and your foot measurements in centimeters.

The most dependable way to use any shoe size conversion chart is to combine three things:

• Your foot length in centimeters
• The brand’s own size table, if one is available
• Fit context, such as whether the shoe runs narrow, short, roomy, or true to size

That matters because a US size 9 does not always feel the same across sneakers, boots, loafers, dress shoes, or kids’ school shoes. Even within one brand, a retro sneaker can fit differently from a performance runner, and a leather boot may break in very differently from a mesh walking shoe.

Below is a general reference chart. It is designed as a practical baseline, not an absolute rule. EU sizing is especially useful for cross-checking, while centimeters are usually the best anchor when you want the most direct measurement.

Men’s shoe size conversion chart

Women’s shoe size conversion chart

Kids’ shoe size conversion chart

Kids’ sizing can be the most confusing because youth, little kid, and big kid labels vary by retailer. Use this as a general cross-reference and always prioritize the centimeter measurement.

When you see searches like us to eu shoe size, uk to us shoe size, or shoe size chart cm, the goal is usually speed. But the smarter approach is accuracy. Measure first, convert second, and use reviews only after you know your baseline.

How to measure your foot at home

1. Place a sheet of paper against a wall on a hard floor.
2. Stand with your heel lightly touching the wall.
3. Mark the longest point of your foot, usually the big toe or second toe.
4. Measure from the wall edge to the mark in centimeters.
5. Repeat for the other foot and use the longer measurement.
6. Measure in the evening if possible, since feet often swell slightly through the day.

If you wear thicker socks with boots or walking shoes, measure with similar socks on. For slim loafers or low-profile sneakers, measure in the type of sock you expect to wear most often.

Centimeters matter because they remove some of the ambiguity from region-based sizing. If one brand says 27.0 cm is a men’s US 9 and another says 27.0 cm is closer to 8.5, the centimeter value gives you the cleanest comparison point.

Maintenance cycle

This section explains how to keep your size reference useful over time. A size chart is not something you check once and forget. It works best as a living note that you revisit on a regular schedule.

A simple maintenance cycle looks like this:

Every 6 to 12 months: re-measure both feet

Your shoe size can shift gradually due to age, training, weight changes, pregnancy history, foot swelling, or changes in arch support. Even a small difference can matter if you buy narrow sneakers, structured boots, or long-wear walking shoes.

If your current shoes suddenly feel tight in the toe box, loose in the heel, or uncomfortable across the instep, start by checking your measurements again before assuming the brand changed.

At the start of a season: review category-specific fit

Different seasons often mean different shoe types. Summer may bring sandals and low-profile casual shoes. Fall and winter usually mean thicker socks, lined boots, weatherproof materials, and stiffer uppers. Spring often brings lightweight sneakers and walking shoes.

That means your size reference should include notes like:

• “Take my usual sneaker size in mesh runners.”
• “Half size up in leather boots for thicker socks.”
• “Order wide fit if the toe box is tapered.”
• “Kids’ school shoes need growth room, but not heel slip.”

This is especially helpful when comparing categories like lifestyle sneakers, work boots, and comfortable everyday shoes. If you are also shopping for support or mileage, our guide to running shoes vs walking shoes can help clarify why sizing and fit feel different across activity-focused footwear.

When trying a new brand: create a personal conversion note

One of the best long-term shopping habits is to keep a small note on your phone with entries such as:

• Brand name
• Style name
• Labeled size
• CM size if provided
• Fit notes: true, small, large, narrow, wide, stiff, roomy

Over time, this becomes more useful than any generic chart. It gives you your actual, tested fit history. This is particularly valuable for shoppers comparing sneaker drops, casual shoes, or boots across different regions.

For kids: check more often

Kids’ shoe sizing needs a shorter update cycle. Growth can be uneven and quick, and a pair that fit well a few months ago can become tight sooner than expected. Recheck measurements before back-to-school shopping, before a sports season, and after any noticeable growth spurt.

If you are buying for children online, focus less on the printed number and more on foot length, room at the toe, and whether the shoe is meant for all-day wear, play, or formal occasions.

Signals that require updates

Sometimes the chart itself is not the problem. The context has changed. These are the most common signals that tell you your saved size information needs a refresh.

1. A familiar size suddenly feels wrong

If you always wore one size in a type of shoe and now that size feels off, update your measurements first. Do not assume every brand has changed. Your feet, socks, insoles, or usage may have changed too.

2. A brand changes materials or silhouette

A leather sneaker, suede boot, knit runner, and rubberized weather shoe can all fit differently even if the size tag is identical. Material stiffness, lining thickness, and toe shape all affect fit. New seasonal versions of an old favorite can also feel different if the last has been revised.

3. Search intent shifts toward centimeters and fit notes

This reference article should stay useful because shoppers increasingly want practical guidance, not just a bare conversion list. If you notice that your own shopping questions are changing from “What is my EU size?” to “What is my size in cm and does this boot run narrow?”, that is a sign to update your size notes with more detail.

4. You start shopping more internationally

If you are buying from UK or EU retailers more often, conversion matters more. In those cases, keep your centimeter measurement at the top of your notes and treat region labels as secondary. This makes us to eu shoe size conversions much less error-prone.

5. You need width-specific help

Length alone does not solve every fit issue. If you routinely size up to get more width, your best answer may be a wide-fit option rather than a longer shoe. For deeper guidance, see Best Shoes for Wide Feet: Sneakers, Boots, and Casual Styles That Actually Fit.

6. You are switching shoe categories

Someone who knows their size in fashion sneakers may still need a fresh fit check for hiking boots, chelsea boots, walking shoes, or minimalist trainers. Different categories distribute space differently across the toe box, midfoot, heel, and collar.

Common issues

Most fit problems come from a few repeat mistakes. Fixing them makes any shoe buying guide or conversion chart much more useful.

Confusing men’s and women’s conversions

Men’s and women’s sizes are not interchangeable by label alone. If you are shopping unisex sneakers or converting across regions, always check the brand chart. A unisex release may list one size scale more prominently than another, which can cause ordering mistakes.

Relying on EU sizing as if it were perfectly standardized

EU sizes are often more consistent than US labels, but they are still not universal. Some brands round up or down, and some use half sizes differently. Use EU as a cross-check, not a guarantee.

Ignoring centimeters

The simplest way to improve fit accuracy is to pay attention to centimeters. If the retailer provides internal length or foot-length recommendations in cm, use them. This is usually the most practical answer to confusing men women kids shoe sizes conversions.

Buying boots without accounting for socks and break-in

Boot sizing needs more context than sneaker sizing. Thick socks, structured leather, and higher shafts change how the shoe feels. Some boots soften and mold with wear; others hold their shape. If you are shopping seasonal styles, a category-specific boot sizing guide can be more useful than a general chart alone.

Assuming all sneakers fit the same

Lifestyle sneakers, court shoes, retro runners, and walking sneakers can all fit differently. If comfort is a priority, compare your usual size against shoes known for all-day wear rather than styling alone. Our guide to best walking sneakers for all-day comfort is a helpful next step if you need support plus everyday versatility.

Forgetting that white sneakers often show fit problems quickly

Low-profile white sneakers are easy to style, but poor fit is often obvious because creasing, heel slip, and toe pressure show up early. If that is the style you wear most, it helps to compare shape as well as size. See Best White Sneakers for Men and Women for style context once your size baseline is set.

Not measuring both feet

Many people have one foot slightly longer or wider than the other. Fit to the larger foot, then adjust with lacing, socks, or an insole if needed. This can prevent the common mistake of choosing the tighter fit just because one shoe feels fine.

Using old size assumptions after life changes

If your activity level, weight distribution, arch support, or daily walking habits have changed, revisit your measurements. A shoe that worked when you wore it occasionally may no longer work as an everyday option.

When to revisit

Use this section as your practical reset button. If you want your size chart to stay accurate, revisit it on a schedule and at key shopping moments.

Revisit your chart and measurements:

• Every 6 to 12 months for adults
• Every season for kids, or sooner during growth spurts
• Before ordering from a new international retailer
• Before buying a new shoe category, especially boots or performance footwear
• When a trusted size suddenly feels too short, too narrow, or too loose
• When switching between regular and thick socks
• When adding insoles or orthotics

A simple five-minute size check before you buy

1. Measure both feet in centimeters.
2. Use the longer foot as your baseline.
3. Compare that number to the brand’s chart.
4. Read fit notes for width, toe shape, and material.
5. Think about socks, insoles, and intended use before choosing the final size.

If you want to make this article worth returning to, save your own version of the chart with personal notes. Add the brands you wear most, your best-fitting size in each, and any category-specific adjustments. That turns a general shoe size conversion chart into a much more useful shopping tool.

The bottom line is simple: conversions help, but measurements decide. US, UK, and EU labels are useful reference points; centimeters are the anchor; real-world fit notes are the tie-breaker. Revisit this guide whenever your shopping habits shift, your favorite brands update a last, or your feet no longer match the size you assumed. That small habit will usually do more for comfort than chasing a bigger or smaller number at random.