Shoe Size Conversion Chart

A 25.5 cm foot length corresponds to China size 41, US men's 7.5, and UK 7

The same foot length can be labeled with very different numbers across countries and brands. If you only rely on EU sizes such as 39 or 40, it is easy to choose the wrong US size. This chart brings together common China sizes (foot length), EU sizes, US men's and women's sizes, and UK sizes. Once you know your foot length, you can quickly find the right shoe size.

How to use this shoe size chart

Enter your measurement in the Foot Length (cm) field, then select Search. It takes just two steps:

1. Measure your foot length: Stand upright with your heel against a wall. Measure from the wall to the tip of your longest toe, then round to the nearest 0.5 cm. For example, record 25.3 cm as 25.5 cm.
2. Enter your measurement: Type your foot length, such as “26,” into the field and select Search. The results will immediately show the matching China, EU, US men's, US women's, and UK sizes. You can also use the chart directly if you only need one sizing system.

Each row represents one foot length. From left to right, you will see foot length in centimeters, China/EU size, US men's size, US women's size, and UK size. Scroll to find your measurement and compare all sizing systems at a glance.

Example: a 26 cm foot length

Suppose your foot length is 26 cm. Enter “26” in the Foot Length (cm) field and select Search. The calculator will show:

• China/EU size: 42
• US men's: 8
• US women's: 10
• UK: 7

How is this calculated? Shoe-size conversions follow general reference formulas. EU and China sizes are both based on foot length: EU size = foot length in cm × 2 − 10, so 26 × 2 − 10 = 42. A common formula for US men's shoes is foot length in cm minus 18, plus 0.5, which gives 26 − 18 + 0.5 = 8.5. In practice, size 8 commonly corresponds to 26 cm, so formulas can vary slightly; this tool uses conversion charts widely used by major brands. US women's sizes are generally 1.5 to 2 sizes larger than men's for the same foot length, making 26 cm approximately a women's US 10. UK sizing is typically one size below US men's, or UK 7. These conversions are built into the tool—just enter your foot length to see your sizes.

If you usually wear size 42 and want to buy sneakers from a US retailer, check the US Men's column and choose size 8 as a reliable starting point.

When this chart is useful

Shopping for sneakers internationally: International Nike or adidas product pages often list only US or UK sizes. Enter your foot length to see whether US 7.5 or 8 is the better match and reduce the chance of returns.

Buying shoes for family members: A relative may only know that they wear “size 41,” while the pair you are buying uses UK sizing. Match their foot length in centimeters to find the equivalent UK 7 and order with more confidence.

Choosing kids' shoes: This chart is primarily designed for adult sizes, but foot length remains useful for children. Children's size ranges differ by brand, so use the result as a starting point and confirm it against the brand's own kids' size guide.

Common mistakes to avoid

• Remembering only one size instead of measuring your feet: Many people remember wearing “42,” but size 42 can correspond to a foot length from 26 to 27 cm depending on the brand. Foot length is the more reliable reference, so measure again before buying new shoes.
• Converting directly from an old shoe label: Some older China shoe labels use a format such as 260 (2.5). This means a 260 mm foot length—26 cm—not size 260. Divide the millimeter value by 10 before entering it in the tool.
• Ignoring differences between your left and right foot: Most people have one foot that is slightly longer. Measure both and use the longer measurement to avoid a tight fit.
• Treating foot length in cm as an EU size: A 25 cm foot length is not EU 25. EU size is approximately foot length × 2 − 10, so the two measurements are not interchangeable. Confusing them can lead to a difference of two or more sizes.
• Overlooking brand differences: This chart follows common standards, but brands such as New Balance and Clarks may use their own sizing conventions. Use this tool as a reference, then check the brand's official size chart before purchasing.

Frequently asked questions

What US size is China size 41?
China size 41 usually corresponds to a 25.5 cm foot length, US men's 7.5, and US women's 9.5. Enter 25.5 in the field to check.

Are shoe sizes the same across brands?
Not exactly. This tool provides industry-standard conversions, but lasts, toe-box widths, and design choices can affect fit. Check the brand's own size advice and customer reviews as well as the size number.

How do I measure my foot length accurately?
Stand on a hard floor with your heel firmly against a wall. Use a ruler or tape measure to measure from the wall to the tip of your longest toe. Measuring in the afternoon or evening is best, when feet are slightly more swollen and closer to their typical wearing size.

What if my foot length falls between sizes?
If your measurement falls between 0.5 cm increments, such as 25.3 cm, round up to 25.5 cm and choose the corresponding size. If you prefer thick socks, consider going up another half size.

Can I use this tool for kids' shoe sizes?
You can use it to find adult-system equivalents for a foot length, but children's shoes usually have dedicated size ranges that vary by brand. Check the foot length here first, then find the matching range in the brand's kids' size chart.

What is the difference between US men's and women's shoe sizes?
US women's sizes are usually 1.5 to 2 sizes larger than US men's sizes for the same foot length. For example, a 26 cm foot corresponds to US men's 8 and approximately US women's 10. This chart shows both to make comparison easy.

Scope and notes

This chart is suitable for general size conversion for most adult everyday footwear, including sneakers, casual shoes, and dress shoes. It is not intended for specialist performance shoes with unique fit systems, ski boots, or orthopedic footwear. The data is based on GB/T 3293-1998 Shoe Sizes and publicly available size-conversion information from major brands. Actual products may vary by ±0.5 size. For made-to-measure footwear or a precise fit, follow the brand's official measurement method or try the shoes on.

Enter your foot length in the chart above to find your matching shoe sizes.