International Shoe Size Chart & Conversion Guide

Convert US, UK, EU, CM, and JP shoe sizes accurately for men, women, and kids. Stop guessing your size online — use this complete international footwear sizing chart to buy the right pair the first time.

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Why this matters: Did you know that a US men's size 9 is roughly a UK 8, an EU 42.5, and a 27 cm foot length? Sizing systems vary dramatically between brands and countries. Getting this wrong is the #1 reason for online shoe returns. Below is a complete, up-to-date reference to help you shop confidently from any retailer worldwide — including affiliate-listed footwear that fits right the first time.

Men's International Shoe Size Chart

Use this table to convert men's shoe sizes across the major global systems. Measurements are based on foot length in centimeters and inches. When between sizes, always round up for comfort — especially for durable shoes and everyday walking pairs.

US Men	UK Men	EU Size	JP / CM	Foot Length (in)
6	5.5	38.5	24	9.25"
6.5	6	39	24.5	9.5"
7	6.5	40	25	9.63"
7.5	7	40.5	25.5	9.75"
8	7.5	41	26	9.94"
8.5	8	42	26.5	10.13"
9	8.5	42.5	27	10.25"
9.5	9	43	27.5	10.44"
10	9.5	44	28	10.56"
10.5	10	44.5	28.5	10.75"
11	10.5	45	29	10.94"
11.5	11	45.5	29.5	11.13"
12	11.5	46	30	11.25"
13	12.5	47.5	31	11.56"

If your feet run wide, standard length conversion is not enough. Consider checking guides for comfortable shoes for flat feet and arch support inserts for flat shoes to make sure your final purchase fits well in width as well as length.

Women's International Shoe Size Chart

Women's sizing differs significantly from men's. A US women's 8 is roughly a UK 6, an EU 38.5, and a 24.5 cm foot. The chart below gives you accurate conversions across systems.

US Women	UK Women	EU Size	JP / CM	Foot Length (in)
5	2.5	35	22	8.5"
5.5	3	35.5	22.5	8.63"
6	3.5	36	23	8.75"
6.5	4	37	23.5	8.94"
7	4.5	37.5	24	9.06"
7.5	5	38	24.5	9.25"
8	5.5	38.5	25	9.38"
8.5	6	39	25.5	9.5"
9	6.5	40	26	9.69"
9.5	7	40.5	26.5	9.81"
10	7.5	41	27	10"
10.5	8	42	27.5	10.19"
11	8.5	42.5	28	10.31"
12	9.5	44	29	10.63"

Many women need extra width or heel stability, especially when choosing formal footwear. Explore our guides on women's dress shoes with low heel and women's wide sandals with arch support for style that does not compromise on fit.

Kids' International Shoe Size Chart

Children's feet grow fast, so getting the size right matters even more. Below is a conversion chart for kids' footwear from toddler through youth sizes.

US Kids	UK Kids	EU Size	JP / CM	Approx Age
4T	3.5	20	12	1–2 yrs
6T	5.5	22	13.5	2–3 yrs
8T	7.5	25	15	3–4 yrs
10C	9.5	27	17	4–5 yrs
11C	10.5	28.5	17.5	5–6 yrs
12C	11.5	29.5	18.5	6–7 yrs
13C	12.5	31	19.5	7–8 yrs
1Y	13.5	32.5	20.5	8–9 yrs
2Y	1.5	34	21.5	9–10 yrs
3Y	2.5	35	22.5	10–11 yrs
4Y	3.5	36	23	11–12 yrs
5Y	4.5	37.5	24	12–13 yrs

For young boys and girls, fit comfort and durability are essential. Browse our collections of boys' shoes and girls' shoes for age-appropriate styles that hold up to daily play.

How to Measure Your Foot Correctly at Home

Converting sizes is only useful if you know your true foot length. Follow these steps to get an accurate measurement in under five minutes.

Measure in the evening. Feet swell slightly throughout the day, so evening measurements are the most accurate.
Stand on a sheet of paper with your heel against a wall. Wear the socks you plan to wear with the shoes.
Mark the tip of your longest toe (not always the big toe) and the back of your heel.
Measure the distance in centimeters. Repeat for both feet — always use the larger measurement.
Add 0.5 cm of allowance for toe room. Compare this final figure against the JP / CM column above.

Pro tip: If your feet are different sizes (very common), always buy to fit the larger foot. Use the fit measurement guide for a deeper walkthrough, and consider insoles or heel cushions to adapt the other shoe.

The Main Sizing Systems Explained

US Sizing (United States)

Uses a barleycorn-based system with separate scales for men, women, and children. Women's sizes are typically about 1.5 to 2 sizes larger than men's equivalents.

UK Sizing (United Kingdom)

Similar to the US system but shifted. UK men's sizes run about half a size smaller than US men's, while UK kids' sizing uses a distinct infant/youth split.

EU Sizing (Europe)

Based on the Paris point system — each size equals two-thirds of a centimeter. EU sizes are the same for men and women, which simplifies cross-shopping.

JP / CM Sizing (Japan & Asia)

The most intuitive system: it uses the actual foot length in centimeters. If your foot measures 25 cm, you wear a JP 25. This is the most accurate method for online shopping.

Tips for Buying Shoes Internationally Online

Always check the brand's own size chart. Conversion tables vary slightly between manufacturers — use ours as a baseline, then verify with the retailer.
Read reviews about sizing. Shoppers often mention whether a specific model runs small or large. This is invaluable when converting sizes.
Know the return policy. Before ordering across borders, confirm that international returns are accepted. Check our warranty information guide for what to expect.
Consider width separately from length. A perfect length conversion is useless if the shoe is too narrow. Look for wide-fit options and use comfortable shoes with arch support if you need extra stability.
Budget for potential exchanges. International shipping can be costly — factor this into your purchase. Our financing options guide may help if you're planning a large order.

Common Size Conversion Mistakes to Avoid

Assuming US and UK sizes are the same. They are not — the gap is roughly 0.5 to 1 size depending on gender.
Ignoring the difference between men's and women's sizing. A US women's 9 is not the same as a US men's 9. The gap is typically 1.5 sizes.
Forgetting that kids' sizes change by system too. A EU 27 is not a US 27 — kids' conversions are the most error-prone area of all.
Not measuring your feet fresh. Feet change over time. Remeasure every year or two, especially if you've had foot issues like plantar fasciitis.
Buying without checking reviews for the specific model. Even within one brand, different models can run differently.

Recommended Footwear for Every Size

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