Chinese Shoe Size to US And Other Standards: Complete International Shoe Size Chart for Men, Women & Kids

If you’re importing footwear from China, you’ve likely encountered the confusion that comes with converting Chinese shoe sizes to US sizes. One factory sends you sizes labeled “CN 39,” another uses “EU 40,” and your customers in Los Angeles are asking for “US 8.” Getting this wrong means returns, chargebacks, and unhappy buyers.

As a China sourcing agent who has helped traders navigate thousands of shoe orders, I can tell you that understanding shoe size conversion is one of the most practical skills you’ll develop in the footwear business. This guide gives you everything you need: clear conversion charts, measurement methods, and the sourcing-specific insights that will save you from costly sizing mistakes.

How Different Shoe Size International Standards Are Derived

Chinese Shoe Size System

The Chinese shoe size number is calculated using the formula: shoe size = (foot length in centimeters × 2) – 10. For example, a foot length of 27.0 cm corresponds to a Chinese shoe size of 44. This method is widely used in China and provides a reliable base for conversions to other sizing systems. The system relies on exact foot lengths measured in centimeters to ensure accurate sizing.

US Shoe Size System

The US shoe size system is based on an arbitrary scale that originated from the length of the shoe last rather than the foot itself. Sizes increase in increments of approximately one-third of an inch, with separate scales for men, women, and children.

The US men’s size scale is distinct from women’s and children’s sizes, and is commonly referenced in international size conversions, especially when comparing with Chinese, European, or UK sizing systems. The system does not directly measure foot length in centimeters but rather uses size numbers that correspond to standardized shoe lasts. This leads to variations between brands and styles, making precise conversions challenging.

European (EU) Shoe Size System

The European shoe sizing system uses the Paris point, a unit equal to two-thirds of a centimeter (6.67 mm). Shoe sizes are calculated based on the length of the shoe last, not the foot, measured in Paris points. The size number increases in whole increments, with the formula roughly being: shoe size = (last length in cm × 1.5). This system is used widely across continental Europe and provides a consistent sizing scale.

UK Shoe Size System

The UK system is the standard shoe sizing method used in the United Kingdom. It was historically developed based on the length of the shoe last measured in barleycorns (one-third of an inch ≈ 8.47 mm), a traditional English unit. The UK system applies to both adult and children’s shoes, starting at children’s size zero for a last length of 4 inches (≈10.16 cm), with sizes increasing in increments of one barleycorn per full size (and one-sixth inch for half sizes).

Children’s sizes run from 0 to 13½, after which adult sizes begin at size 1 (last ≈8⅔ inches). Like the US system, it has a separate scale for children, while adult sizes are nominally unified for men and women (though some manufacturers adjust women’s numbering slightly). Sizes can vary between manufacturers due to differences in last shapes and allowances.

Japanese Shoe Size System

The Japanese shoe size system measures foot length directly in centimeters, similar to the Mondopoint system used in China. The size number corresponds exactly to the foot length in centimeters, making it one of the most straightforward and accurate sizing methods. This system is commonly used in Japan and often aligns closely with Chinese sizing, facilitating easier conversions between the two.

Quick Answer: How to Convert Chinese Shoe Size to US

Most Chinese factories use China’s own shoe size standards. When you see “CN 44” on a carton, it means the shoe fits a 27.0 cm foot. Traders primarily need to convert these measurements to US sizes for their customers.

Here are ready-to-use examples for adults:

• CN 38 → US women’s 7.5–8 / US men’s 6–6.5
• CN 40 → US women’s 8.5–9 / US men’s 7–7.5
• CN 42 → US women’s 9.5–10 / US men’s 8–8.5
• CN 44 → US women’s 11 / US men’s 9.5–10

It’s important to understand that “Chinese size” on export cartons usually refers to Chinese domestic size (e.g., 38, 40, 42), not EU-style numbers. Some factories also print EU or US sizes, but the CN measurement is your most reliable anchor point.

Detailed charts for men, women, and kids follow immediately below—all tailored specifically for buying from Chinese suppliers. One critical note from my experience: always confirm size specs with factories before production starts. A quick verification email can prevent thousands of dollars in mislabeling costs.

Understanding Chinese vs US Shoe Size Systems

China’s domestic shoe size system is calculated using the formula: shoe size = (foot length in centimeters × 2) – 10. For example, a foot length of 24.0 cm corresponds to a Chinese shoe size of 38. This standard is widely used by Chinese factories and retailers and serves as the primary reference for sizing in the Chinese market.

When sourcing from Chinese factories, you’ll often see several ways of marking sizes that relate back to this formula and actual foot length:

• “CN 44” — Represents a Chinese shoe size based on a foot length of 27.0 cm (270 mm)
• “270 mm” — Foot length in millimeters, equivalent to 27.0 cm
• “27.0” — Centimeter notation of foot length

These markings all reflect the foot length measurement, making the Chinese system more directly tied to actual foot length compared to the US system. The US shoe size system, by contrast, uses an arbitrary numerical scale that varies significantly between brands and manufacturers and does not correspond directly to foot length in centimeters.

It is important to use the Chinese domestic shoe size formula when converting Chinese sizes to US sizes, as this provides a consistent and reliable baseline for accurate shoe size conversion.

Here are concrete mapping examples to illustrate:

Foot Length	Chinese Size	US Men’s Size	US Women’s Size
25.0 cm	CN 40	7-7.5	8.5-9
25.5 cm	CN 41	7.5-8	9-9.5
26.0 cm	CN 42	8-8.5	9.5-10

From a sourcing agent’s perspective, containers often mix Chinese and US size markings because factories produce for multiple markets simultaneously. This causes confusion in overseas warehouses when staff try to sort inventory. I always recommend specifying your exact labeling requirements in purchase orders.

Chinese to US Men’s Shoe Size Conversion Chart

This men’s shoe size conversion chart is optimized for adult men’s footwear sourced from China. It uses foot length as the baseline and includes common CN labels you’ll see from factories, along with EU sizes for traders selling in other countries.

Foot Length  (cm)	Foot Length (inches)	Chinese Size	US Men	US Women	EU
24.0	9.45	CN 38	6.5	7.5	38
24.5	9.65	CN 39	7	8	38.5-39
25.0	9.84	CN 40	7.5-8	8.5-9	39-40
25.5	10.04	CN 41	8-8.5	9-9.5	40-41
26.0	10.24	CN 42	8.5-9	9.5-10	41-42
26.5	10.43	CN 43	9-9.5	10.5	42-43
27.0	10.63	CN 44	10	11	43-44
27.5	10.83	CN 45	10.5-11	11.5	44-45
28.0	11.02	CN 46	11.5	12	45-46
28.5	11.22	CN 47	12	12.5-13	46-47
29.0	11.42	CN 48	12.5-13	13-13.5	47-48
29.5	11.61	CN 49	13–13.5	13.5-14	48–49
30.0	11.81	CN 50	14	14-14.5	49-50
30.5	12.01	CN 51	14.5	14.5-15	50-51
31.0	12.20	CN 52	15	15-15.5	51-52
31.5	12.40	CN 53	15.5-16	15.5-16	52-53
32.0	12.60	CN 54	16	16+	53-54
32.5	12.80	CN 55	16.5-17	–	54-55
33.0	12.99	CN 56	17	–	55-56
33.5	13.19	CN 57	17.5	–	56-57
34.0	13.39	CN 58	18	–	57-58

Keep in mind that Chinese men’s athletic shoes and leather shoes may fit slightly differently due to construction. Sports shoes often include more room for thicker socks and foot swelling, while dress shoes tend to run more snug. I recommend ordering fit samples before large orders, especially when working with a new factory.

As a sourcing agent, I advise traders to print this chart or share it internally with sales and warehouse teams. Having everyone refer to the same standard prevents miscommunication when processing orders.

How We Recommend Traders Use the Men’s Chart

Traders should always start from the end-customer’s measured foot length in centimeters—not just their “usual” US size. This approach eliminates guesswork because foot size is objective, while “I usually wear US 9” can differ slightly between someone buying Nike versus New Balance.

Here’s a simple process to follow:

1. Measure foot — Have customer or retailer measure foot length accurately in cm
2. Find nearest cm — Match to the closest value in the chart
3. Get CN mm — This is what you communicate to the factory
4. Confirm with factory’s own chart — Ask for their size chart and cross-reference
5. Finalize US size labeling — Ensure consistency on shoe boxes and labels

During sampling, ask factories to print both CN and US sizes on the inner label and shoe box. This dual-labeling makes resale easier for traders operating in multiple markets.

One warning: some low-cost factories still use non-standard grading that can differ slightly from international standards. I advise checking at least 2–3 random pairs per size during inspection to verify the correct size actually matches the label.

Chinese to US Women’s Shoe Size Conversion Chart

Women’s lasts (the forms used to shape shoes) in China differ from men’s—they’re typically narrower with a different instep height. This means traders should never blindly reuse men’s conversion tables for women’s shoes. The same shoe fits differently even when foot measurements appear similar. When converting Chinese shoe size to US, special attention is needed for women’s shoe size conversions due to differences in lasts and sizing standards.

Foot Length (cm)	Foot Length (inches)	Chinese Size (mm)	US Women	US Men	EU
21.0	8.27	CN 32-33	3.5-4	–	34
21.5	8.46	CN 33	4-4.5	–	34.5-35
22.0	8.66	CN 34	4.5-5	–	35
22.5	8.86	CN 35	5-5.5	–	35-36
23.0	9.06	CN 36	6	5-5.5	36-37
23.5	9.25	CN 37	6.5-7	6	37
24.0	9.45	CN 38	7.5	6.5	38
24.5	9.65	CN 39	8	7	38.5-39
25.0	9.84	CN 40	8.5-9	7.5-8	39-40
25.5	10.04	CN 41	9-9.5	8-8.5	40-41
26.0	10.24	CN 42	9.5-10	8.5-9	41-42
26.5	10.43	CN 43	10.5	9-9.5	42-43
27	10.63	CN 44	11	10	43-44
27.5	10.83	CN 45	11.5	10.5-11	44-45
28.0	11.02	CN 46	12	11.5	45-46
28.5	11.22	47	12.5-13	12	46-47
29.0	11.42	48	13-13.5	12.5-13	47-48
29.5	11.61	49	13.5-14	13-13.5	48-49
30.0	11.81	50	14-14.5	14	49-50
30.5	12.01	51	14.5-15	14.5	50-51
31.0	12.20	52	15-15.5	15	51-52
31.5	12.40	53	15.5-16	15.5-16	52-53
32.0	12.60	54	16+	16	53-54

Understanding women’s sizes across different systems—such as US, Chinese, UK, and EU—is crucial for accurate fit and proper conversion. Women’s shoe size conversions can vary based on foot length, width, and regional sizing standards, so always refer to a detailed chart and measure feet carefully.

Fashion heels, sandals, and sneakers produced in China may use the same CN length but fit differently because of toe shape, heel height, and design. A pointed-toe heel in CN 38 will feel tighter than a round-toe sneaker in the same size because the longer measurement accounts for the point, not usable toe space.

From a sourcing perspective, I recommend getting test orders for “difficult” sizes—US 5–5.5 and US 10–11.5—where fit complaints are most common. These sizes sit at the edges of typical production curves and often have the most inconsistency.

Practical Tips for Women’s Sizing When Buying from China

Request factory fit photos or short try-on videos for sample sizes, especially for high heels and pointed-toe shoes. Seeing the shoe on an actual foot reveals fit issues that measurements alone can’t capture.

When listing products online or in catalogues, add sizing notes like: “Designed for CN 38 (24 cm foot length) ≈ US 7.5.” This transparency helps customers self-select the right size and dramatically reduces return rates.

For size curve planning, stock more generous quantities around best-selling women’s sizes. In most Western markets, CN 37–39 (roughly US 6.5–8) moves fastest. Ordering extra pairs in this range and fewer at the extremes optimizes inventory.

For markets with wider feet—North America is a prime example—traders can negotiate “wide fit” molds or specify wider ball girth with the factory. Many Chinese factories already have wide-fit lasts available; you just need to ask.

Chinese to US Children’s Shoe Size Conversion Chart

Chinese children’s shoe sizes also follow foot length in millimeters, but the sizing bands differ for babies, toddlers, and older kids. Age ranges are only approximate references—feet tend to grow at unpredictable rates, so traders should always use foot measurements when communicating with retailers and parents.

This chart focuses on kids and grade-school styles commonly exported from Chinese factories:

Foot Length (cm)	Foot Length (inches)	Chinese Size (mm)	US Kids (Children’s/Kids’/Youth)	Approximate Age	EU Size
9.0	3.54	CN 8–10	Infant 0–0.5	0–3 months	15–16
9.5	3.74	CN 9–11	Infant 0.5–1	0–3 months	16
10.0	3.94	CN 10–12	Infant 1–1.5	3–6 months	16–17
10.5	4.13	CN 11–13	Infant 1.5–2	3–6 months	17
11.0	4.33	CN 12–14	Infant 2–2.5	6–9 months	17–18
11.5	4.53	CN 13–15	Infant 2.5–3	6–9 months	18
12.0	4.72	CN 14–16	Infant 3–3.5	9–12 months	18–19
12.5	4.92	CN 15–17	Infant 3.5–4	9–12 months	19
13.0	5.12	CN 16–18	Toddler 4–4.5	12–18 months	19–20
13.5	5.31	CN 17–19	Toddler 4.5–5	12–18 months	20
14.0	5.51	CN 18–20	Toddler 5–5.5	18–24 months	20–21
14.5	5.71	CN 19–21	Toddler 5.5–6	18–24 months	21
15.0	5.91	CN 20–22	Toddler 6–6.5	2–3 years	21–22
15.5	6.10	CN 21–23	Toddler 6.5–7	2–3 years	22
16.0	6.30	CN 22–24	Toddler 7–7.5	3–4 years	22–23
16.5	6.50	CN 23–25	Toddler 7.5–8	3–4 years	23
17.0	6.69	CN 24–26	Little Kid 8–8.5	4–5 years	23–24
17.5	6.89	CN 25–27	Little Kid 8.5–9	4–5 years	24
18.0	7.09	CN 26–28	Little Kid 9–9.5	5–6 years	24–25
18.5	7.28	CN 27–29	Little Kid 9.5–10	5–6 years	25
19.0	7.48	CN 28–30	Little Kid 10–10.5	6–7 years	25–26
19.5	7.68	CN 29–31	Little Kid 10.5–11	6–7 years	26
20.0	7.87	CN 30–32	Little Kid 11–11.5	7–8 years	26–27
20.5	8.07	CN 31–33	Little Kid 11.5–12	7–8 years	27
21.0	8.27	CN 32–34	Little Kid 12–12.5	8–9 years	27–28
21.5	8.46	CN 33–35	Little Kid 12.5–13	8–9 years	28
22.0	8.66	CN 34–36	Big Kid 13–1	9–10 years	28–29
22.5	8.86	CN 35–37	Big Kid 1–1.5	9–10 years	29
23.0	9.06	CN 36–38	Big Kid 1.5–2	10–11 years	29–30
23.5	9.25	CN 37–39	Big Kid 2–2.5	10–11 years	30
24.0	9.45	CN 38–40	Big Kid 2.5–3	11–12 years	30–31
24.5	9.65	CN 39–41	Big Kid 3–3.5	11–12 years	31
25.0	9.84	CN 40–42	Big Kid 3.5–4	12+ years	31–32
25.5	10.04	CN 41–43	Big Kid 4–4.5	12+ years	32
26.0	10.24	CN 42–44	Big Kid 4.5–5	13+ years	32–33

Note the transition around CN 30 (20.0 cm) where toddler sizing conventions give way to “big kid” numbering that starts over at 1. This can confuse warehouse staff if not properly documented.

From a sourcing agent perspective, I advise traders to prioritize half sizes or build in small “growth room” for kids’ lines. Parents frequently complain about tight fit because children’s feet grow quickly and adults often buy slightly larger shoe sizes for kids.

Special Considerations for Kids’ Shoes from Chinese Factories

Many Chinese kids’ factories follow domestic GB (Guobiao) standards, which may differ slightly from international shoe size tables. Always obtain the exact standard code and size table from each supplier before confirming production.

Beyond just checking the labeled CN size, test flexibility, insole length, and toe room on pre-production samples. A shoe fits properly when there’s adequate wiggle room for toes—roughly 10–12mm between the longest toe and the shoe tip.

For educational markets like the US, UK, and EU, I recommend producing clear in-box inserts explaining “sized according to foot length in cm.” This reduces customer confusion and builds trust in your brand.

One major warning: some low-end suppliers mix “Asian” and “international” kids’ size curves in the same production run. I strongly suggest third-party inspections for large orders to verify consistency across cartons.

How to Measure Foot Length for Accurate Chinese–US Conversion

Foot length in centimeters is the only reliable base for converting to Chinese and US sizes, especially in cross-border trade. Everything else—brand preferences, “usual sizes,” general guesses—introduces error that leads to returns and complaints. It is crucial to measure your foot correctly to ensure accurate shoe size conversion and a proper fit across different sizing systems.

Here’s the precise size conversions process for measuring:

1. Place foot on paper — Stand on a blank sheet with weight evenly distributed
2. Mark heel — Use a pen to mark where the heel touches the paper
3. Mark longest toe — Mark the tip of the big toe or whichever toe extends furthest
4. Measure in cm — Use a flexible tape or ruler to measure the horizontal distance between marks
5. Measure both feet — Repeat for the other foot
6. Use the larger measurement — Most people have one larger foot; use that measurement

For best results, measure foot length at the end of the day when feet tend to be slightly larger from walking. Stand with full weight on feet properly positioned—not on tiptoes. Wear the type of socks typical for that shoe style.

When rounding, always go up. If foot length is 24.3 cm, round up to 24.5 cm and order CN 39. This prevents shoes being too tight, which is the most common fit complaint.

As a sourcing agent, I suggest traders attach a simple measurement guide with diagrams in their online product pages or catalogues. This small addition can reduce returns by 15–20% because customers self-select sizes based on accurate sizing information rather than guessing.

Common Measurement Mistakes Traders Should Watch For

Even with clear instructions, measurement errors happen. Here are frequent problems I’ve seen:

• Measuring only one foot — This ignores that many people have one foot slightly larger than the other foot
• Not standing up — Sitting measurements are shorter than standing measurements by several millimeters
• Reading inches instead of cm — Customers in the US sometimes confuse units, leading to dramatically wrong size requests
• Measuring from wall to approximate toe position — Instead, they should mark the exact horizontal distance from heel to longest toe

When working with B2B clients, always ask for foot length in cm rather than accepting “US 8” as the only specification. This is especially critical when testing new suppliers who may interpret size systems differently.

When a customer is between two CN sizes, factories typically advise going up half a size, particularly for closed-toe athletic shoes where tighter fit causes discomfort during activity.

I encourage traders to maintain a simple internal spreadsheet linking major customers’ preferred fit to CN and US reference sizes. This institutional knowledge prevents repeating sizing mistakes with returning buyers.

Half Size and Accurate Sizing: What You Need to Know

When it comes to finding the perfect shoe size, understanding half sizes and the importance of accurate sizing can make all the difference between a comfortable fit and a pair of shoes that end up gathering dust. Half sizes—those increments like 7.5 or 8.5—offer a crucial option for people whose feet fall between standard whole sizes. This extra flexibility is especially important for achieving a fit that accommodates both foot length and foot width, ensuring your shoes feel just right from the first step.

Accurate sizing starts with measuring your foot length correctly. To do this, place your foot flat on a piece of paper, mark the back of your heel and the tip of your longest toe, and use a flexible tape or ruler to measure the horizontal distance. Always measure both feet, as feet tend to differ slightly in size—use the larger measurement for your shoe size conversion. For the most precise size conversions, measure your foot length at the end of the day when your feet are at their largest, and wear the type of socks you plan to use with the shoes, especially if you prefer thicker socks for athletic shoes or ski boots.

Foot width is another key factor in accurate sizing. Shoe width can vary significantly between brands and styles, and wider feet may require a larger shoe size or a specific width option. To measure foot width, wrap a flexible tape around the widest part of your foot (usually the ball) and compare the measurement to the brand’s sizing chart. Many international shoe size conversion charts include width options, so be sure to check these if you need more room.

Converting shoe sizes between different countries can be tricky, as each size system—US, UK, European, and others—uses its own scale. For example, a US men’s size 10 is not the same as a UK size 10 or a European size 43. Women’s shoe sizes and children’s shoe sizes can also differ between regions and brands, making a reliable size conversion chart essential. European shoe sizes are based on the Paris point system, while the UK shoe size system uses a different starting point and increment. Always consult an up-to-date international shoe size conversion chart when buying shoes online or sourcing footwear from various countries.

Athletic shoes, such as running shoes or ski boots, often have their own sizing quirks. These shoes may be designed with extra room for thicker socks or to accommodate foot swelling during activity. When converting shoe sizes for athletic footwear, check the manufacturer’s specific recommendations and consider going up half a size if you’re between sizes or need more wiggle room.

For children’s shoes, accurate sizing is even more critical, as kids’ feet grow quickly and need space to develop properly. Use a size conversion chart tailored for children’s shoe sizes, and always measure foot length accurately before purchasing. It’s often wise to choose a slightly larger shoe size to allow for growth, but not so large that the shoe slips off.

Remember, shoe fit can vary significantly between different brands, manufacturing processes, and even between styles from the same brand. Always check the brand’s own size system and conversion tables, and don’t hesitate to try half sizes or wider options if available. If you have wider feet, look for brands that offer multiple width options or consider sizing up for a more comfortable fit.

In summary, achieving accurate sizing is a combination of measuring your foot length and width correctly, understanding the differences between international size systems, and using reliable size conversion charts. Whether you’re shopping for women’s shoes, men’s shoe sizes, or children’s shoes, taking these steps will help you find the correct size and enjoy shoes that fit comfortably—no matter where in the world they’re made.

Other International Conversions Traders Often Need (EU, UK, Japan)

Many traders sourcing from China resell in multiple markets, requiring international shoe size conversion beyond just US sizing. European shoe sizes, UK sizes, and Japanese sizes all follow different conventions, and customers expect accurate sizing information for their region.

Here’s a compact reference table covering the most requested international systems:

Foot Length (cm)	Foot Length (inches)	Chinese Size (CN)	US Men’s Size	US Women’s Size	EU Size	UK Size	JP Size	AU Size
21.0	8.27	32	–	3.5–4	34	2–3	21.0	3.5–4 (W)
21.5	8.46	33	–	4–4.5	34.5–35	2.5–3.5	21.5	4–4.5 (W)
22.0	8.66	34	–	4.5–5	35	3–3.5	22.0	4.5–5 (W)
22.5	8.86	35	–	5–5.5	35–36	3.5–4	22.5	5–5.5 (W)
23.0	9.06	36	5–5.5	6	36–37	4–4.5	23.0	6 (W)/5 (M)
23.5	9.25	37	6	6.5–7	37	4.5–5	23.5	6.5–7 (W)
24.0	9.45	38	6.5	7.5	38	5–5.5	24.0	7.5 (W)/6 (M)
24.5	9.65	39	7	8	38.5–39	5.5–6	24.5	8 (W)/7 (M)
25.0	9.84	40	7.5–8	8.5–9	39–40	6–6.5	25.0	8.5–9 (W)
25.5	10.04	41	8–8.5	9–9.5	40–41	6.5–7	25.5	9–9.5 (W)
26.0	10.24	42	8.5–9	9.5–10	41–42	7–7.5	26.0	9.5–10 (W)
26.5	10.43	43	9–9.5	10.5	42–43	7.5–8	26.5	10.5 (W)/9 (M)
27.0	10.63	44	10	11	43–44	8–8.5	27.0	11 (W)/10 (M)
27.5	10.83	45	10.5–11	11.5	44–45	8.5–9	27.5	11.5 (W)/10.5 (M)
28.0	11.02	46	11.5	12	45–46	9–9.5	28.0	12 (W)/11 (M)
28.5	11.22	47	12	12.5–13	46–47	9.5–10	28.5	12.5–13 (W)
29.0	11.42	48	12.5–13	13–13.5	47–48	10–10.5	29.0	13–13.5 (W)/12 (M)
29.5	11.61	49	13–13.5	13.5–14	48–49	10.5–11	29.5	13.5–14 (W)/13 (M)
30.0	11.81	50	14	14–14.5	49–50	11–11.5	30.0	14–14.5 (W)/13.5 (M)
30.5	12.01	51	14.5	14.5–15	50–51	11.5–12	30.5	14.5–15 (W)/14 (M)
31.0	12.20	52	15	15–15.5	51–52	12–12.5	31.0	15–15.5 (W)/14.5 (M)
31.5	12.40	53	15.5–16	15.5–16	52–53	12.5–13	31.5	15.5–16 (W)/15 (M)
32.0	12.60	54	16	16+ (rare)	53–54	13–13.5	32.0	16+ (W)/15.5 (M)
32.5	12.80	55	16.5–17	16+ (rare)	54–55	13.5–14	32.5	16+ (W)/16 (M)
33.0	12.99	56	17	16+ (rare)	55–56	14–14.5	33.0	16+ (W)/16.5 (M)
33.5	13.19	57	17.5	16+ (rare)	56–57	14.5–15	33.5	16+ (W)/17 (M)
34.0	13.39	58	18	16+ (rare)	57–58	15–15.5	34.0	16+ (W)/17.5 (M)

Note that Japanese sizing conveniently matches the centimeter measurement directly (JP 25.0 = 25.0 cm foot), making converting shoe sizes between Chinese and Japanese markets straightforward.

European sizes use the paris points system, which is based on a different formula than US sizes. EU sizes can differ slightly between brands, so I advise traders selling in the EU to always double-check EU size specifications with the factory—some conversion charts round differently.

The Mondopoint system, which measures foot length in millimeters, is widely adopted in the sports industry for athletic footwear such as ski boots, skates, and pointe ballet shoes due to its precision and international standardization.

For multi-regional distribution, clearly print all required systems (US/EU/UK/CM) on shoe boxes and labels. This simplifies warehouse operations and allows retailers to sell the same shoe across various countries without relabeling.

Common Sourcing Problems & How We Help Traders Avoid Size Issues

Every season, I see traders lose money on sizing issues that could have been prevented. The most common problems when importing shoes from China fall into predictable categories: wrong size curve, inconsistent labeling, and factories using different size charts than expected.

Common problems with concrete examples:

• CN 41 produced as US 7 instead of US 7.5 — Factory used an older conversion table, causing the entire order to run half a size small
• Mixed EU labels in the same carton — Production line switched between EU 40 and EU 41 labels mid-run without quality control catching it
• Mismatched left/right insoles — Cost-cutting led to grabbing whatever insoles were available, resulting in a US 9 left shoe with a US 8.5 insole
• “International” vs “Asian” fit — Factory defaulted to narrower Asian lasts when trader expected wider Western fit

Preventive steps a professional China sourcing agent takes:

1. Verify factory size charts — Request the factory’s internal size table before ordering and compare to international standards
2. Order pre-production samples — Test at least 3 sizes (small, medium, large) to check consistency
3. Check bulk goods against specs — Measure insole length and compare to labeled CN and US sizes during inspection
4. Specify tolerance levels — Include acceptable insole length tolerance (e.g., ±2 mm) in purchase contracts

I recommend that traders include detailed size requirements in purchase contracts, specifying exact labeling text, size range to produce, and measurement tolerances. A line like “US 8 label must correspond to 26.0 cm ± 2 mm insole length” creates accountability.

Accurate Chinese–US shoe size conversion isn’t just about getting the math right—it reduces returns, protects brand reputation, and improves margins for cross-border shoe traders. Every returned pair costs you shipping, restocking, and customer goodwill.

Key Takeaways

• Start with foot length in cm — This is the universal anchor for all size conversions, more accurate reading than brand-specific size numbers
• Use the charts provided — Men’s, women’s, and children’s shoe size tables are ready for your warehouse and sales teams
• Always verify with factories — Different manufacturers may use different conversion tables; confirm before production
• Measure both feet properly — Use the larger foot measurement and round up to avoid tight shoes online and in-store
• Label for multiple markets — Print CN, US, EU, and UK sizes on boxes to simplify distribution across regions
• Inspect before shipping — Random sample checks catch mislabeling before containers leave China

Whether you’re sourcing ski boots, athletic shoes, or fashion heels, the same principles apply. Know your foot measurements, communicate in CN millimeters with factories, and verify before every order ships.

If you’re expanding your footwear business and need reliable international size conversion for shoes online or wholesale distribution, start by implementing these shoe size tables with your team. Consistent sizing practices separate professional traders from those constantly firefighting returns.

The footwear industries reward precision. Get the sizing right, and your customers come back for more.

Recommended Online International Shoe Size Converter

For a convenient and reliable tool to convert shoe sizes across various international standards, I recommend using the Size.ly Shoe Size Conversion Calculator. This online converter allows you to input your foot length or current shoe size and instantly see the equivalent sizes in US, UK, EU, Chinese, Japanese, and other systems. It’s user-friendly and frequently updated to reflect the latest sizing standards, making it an excellent resource for both buyers and sellers navigating the complexities of international shoe size conversion.

You can access the Size.ly Shoe Size Conversion Calculator here: www.size.ly/calculator/shoe-size-conversion-calculator

Using this tool alongside the charts and measurement methods in this guide will help you ensure accurate sizing and reduce returns when sourcing or buying shoes internationally.

Need Help Sourcing Shoes from China?

If you’re looking to source shoes from China and want expert guidance to avoid sizing mistakes and ensure quality, SyncStar Sourcing is here to help. With extensive experience in the Chinese footwear market, we assist businesses in navigating the complexities of shoe size conversion, factory verification, and quality control. Contact SyncStar Sourcing for reliable sourcing solutions that save you time, money, and headaches—let us help you get the right shoes to your customers, every time.