Find your perfect shoe size easily! Convert any size (Euro, UK, international sizes) to US sizes for men, women, and kids. Use our how-to guide to measure your feet or use our printable shoe size charts to find the right size.
International shoe size conversion: What is a size 40 in US? We’ve put together a helpful converter chart which will help you find your US shoe size (both, US men’s and US women’s), UK sizes and Euro shoe sizes. Either convert from one shoe size to another or measure your foot and convert to the preferred size.
Shoe Size Conversion Chart
|US Men's Shoe||US Women's Shoe||UK Size||EU Size||Foot Length in Inches||Foot Length in CM|
|3||4,5||2,5||34,5||8 1⁄2||21,6 cm|
|3,5||5||3||35||8 2⁄3||22,0 cm|
|4||5,5||3,5||35,5||8 5⁄6||22,4 cm|
|5||6,5||4,5||37||9 1⁄6||23,3 cm|
|5,5||7||5||37,5||9 1⁄3||23,7 cm|
|6||7,5||5,5||38||9 1⁄2||24,1 cm|
|6,5||8||6||39||9 2⁄3||24,6 cm|
|7||8,5||6,5||39,5||9 5⁄6||25,0 cm|
|8||9,5||7,5||40,5||10 1⁄6||25,8 cm|
|8,5||10||8||41,5||10 1⁄3||26,2 cm|
|9||10,5||8,5||41,5||10 1⁄2||26,7 cm|
|9,5||11||9||42,5||10 2⁄3||27,1 cm|
|10||11,5||9,5||43,5||10 5⁄6||27,5 cm|
|11||12,5||10,5||44,5||11 1⁄6||28,4 cm|
|11,5||13||11||45,5||11 1⁄3||28,8 cm|
|12||13,5||11,5||46||11 1⁄2||29,2 cm|
|12,5||14||12||46,5||11 2⁄3||29,6 cm|
|13||14,5||12,5||47||11 5⁄6||30,1 cm|
|14||15,5||13,5||48,5||12 1⁄6||30,9 cm|
|14,5||16||14||49||12 1⁄3||31,3 cm|
|15||16,5||14,5||49,5||12 1⁄2||31,8 cm|
|15,5||17||15||50||12 2⁄3||32,2 cm|
Didn’t find what you were looking for? Please choose your preferred shoe size chart:
- UK Shoe Sizes and European Shoe Sizes (German, Italian, French, etc.)
- International Shoe Sizes (Asian, Chinese, Japanese, Korean, Mexican, Indian, etc.)
- Childrens Shoe Sizes
UK Shoe Sizes: UK to US Shoe Size
|UK||US Women's||US Men's|
UK shoe sizes are actually surprisingly close to US shoe sizes, and usually, the size difference for men is only about 0.5 size and for women 2 sizes. Hence, a US women’s shoe size 9, corresponds to a UK size 7 and a US men’s shoe size 10.5 to a UK men’s shoe size 10. However, some manufacturers and companies do things differently, so make sure to consult these UK to US shoe size charts whenever you’re shopping for shoes.
Euro Shoe Sizes: EU to US Shoe Size
|US Men's||US Women's||EU Shoe Size|
|0.5||2||Size 32 EU|
|1||2.5||Size 32.5 EU|
|1.5||3||Size 33 EU|
|2||3.5||Size 33.5 EU|
|2.5||4||Size 34 EU|
|3||4.5||Size 34.5 EU|
|3.5||5||Size 35 EU|
|4||5.5||Size 35.5 EU|
|4.5||6||Size 36.5 EU|
|5||6.5||Size 37 EU|
|5.5||7||Size 37.5 EU|
|6||7.5||Size 38 EU|
|6.5||8||Size 39 EU|
|7||8.5||Size 39.5 EU|
|7.5||9||Size 40 EU|
|8||9.5||Size 40.5 EU|
|8.5||10||Size 41.5 EU|
|9||10.5||Size 41.5 EU|
|9.5||11||Size 42.5 EU|
|10||11.5||Size 43.5 EU|
|10.5||12||Size 44 EU|
|11||12.5||Size 44.5 EU|
|11.5||13||Size 45.5 EU|
|12||13.5||Size 46 EU|
|12.5||14||Size 46.5 EU|
|13||14.5||Size 47 EU|
|13.5||15||Size 47.5 EU|
|14||15.5||Size 48.5 EU|
|14.5||16||Size 49 EU|
|15||16.5||Size 49.5 EU|
|15.5||17||Size 50 EU|
EU Sizes = European Sizes/Euro Sizes are used in the whole of Europe, including France, Italy, Germany, Spain, Sweden etc. Italian Shoe Sizes, French Shoe Sizes and German Shoe Sizes are all unified as “Euro Shoe Sizes”.
European shoe sizes are unisex, compared to the US standard which clearly separates men, women, and children’s shoe sizes. In the European shoe sizing standard, the color, and details often identify whether the footwear is for male or female. Europeans sizing can extend up to a size 50, which measures 12 ⅔ inches.
How to convert Euro shoe size to US? What is a size 40 in US? The easiest way to convert a US men’s shoe size to EU size is to add 33 to your existing US size. Example: If you are wearing a US men’s size 9, then in EU terms, your size will be 42 in Euro.
European shoe sizes are measured in centimeters. Just like US shoes, though, the number does not correspond directly to the size of the shoe – a size 44 in the US will not be 44 centimeters long, but will in fact be about 27.9 centimeters or 11 inches in length. The most common sizes for women are size 39 (in US = 8), EU size 37 is 6.5 US, and size 38 in the US is 7.5.
International Shoe Sizes: Converting US size to Asian, Chinese, Japanese, Korean, Indian shoe sizes
|US Men's||US Women's||JP (cm)||CN||KP (mm)||India|
The above chart will help you convert your shoe size to different Asian shoe sizes. It’s important to note that Japan, Korea, China, and other Asian nations all use different sizing, so there is no universal “Asian” standard. Make sure to consult this chart to make sure you pick the right shoe size for you.
How Do I Find my Shoe Size?
Is Canadian Shoe Size the Same as US Shoe Size?
Yes, Canadian shoe sizes are identical to US shoe sizes, refer to this chart.
What is the difference between US and Euro Shoe Sizes?
Euro size numbers are also not the only thing that differentiates American and Europe-made shoes, for one, European shoes tend to be more narrow in the heel with a wide toe box allowing the heel to be held snug in place without scrunching the toes. Shoes made in the United States meanwhile have a deeper toe box and more cushion than their European counterparts. Most European brands also provide more arch support. These common generalizations however are not true for all American and European shoe brands with some of these firms following their own set of metrics. Compared to the European sizing, the US shoe sizing system could come in narrow, medium, wide, and extra-wide widths than how European sizing system shoes are.
Foot Length Conversion: Inches to US Shoe Size and Centimeters to US Shoe Size
|Foot length (inches)||US Men's||US Women's|
|7 2 ⁄ 3||0.5||2|
|7 5 ⁄ 6||1||2.5|
|8 1 ⁄ 6||2||3.5|
|8 1 ⁄ 3||2.5||4|
|8 1 ⁄ 2||3||4.5|
|8 2 ⁄ 3||3.5||5|
|8 5 ⁄ 6||4||5.5|
|9 1 ⁄ 6||5||6.5|
|9 1 ⁄ 3||5.5||7|
|9 1 ⁄ 2||6||7.5|
|9 2 ⁄ 3||6.5||8|
|9 5 ⁄ 6||7||8.5|
|10 1 ⁄ 6||8||9.5|
|10 1 ⁄ 3||8.5||10|
|10 1 ⁄ 2||9||10.5|
|10 2 ⁄ 3||9.5||11|
|10 5 ⁄ 6||10||11.5|
|11 1 ⁄ 6||11||12.5|
|11 1 ⁄ 3||11.5||13|
|11 1 ⁄ 2||12||13.5|
|11 2 ⁄ 3||12.5||14|
|11 5 ⁄ 6||13||14.5|
|12 1 ⁄ 6||14||15.5|
|12 1 ⁄ 3||14.5||16|
|12 1 ⁄ 2||15||16.5|
|12 2 ⁄ 3||15.5||17|
Foot length is the most important part of shoe sizing. The length and width of your foot will determine what size is the best for you. If a man has a foot length of e.g. 11 inches, he likely wears a US size 11 men’s shoe. To make sure you get the right shoe size, measure your feet and use the above chart to convert your foot length into your shoe size.
Converting UK to US Shoe Size: How does it work?
The easiest way to convert your UK to US shoe size is to remember that numerical correspondent of UK sizes are smaller than its US shoe size counterpart.
For men, simply add a half-size (.5) to your existing UK shoe size. For example, a UK shoe size 6 is a US 6.5 measuring 9 ⅔ inches.
For children shoes. To get your US shoe size, also add a size to your current UK shoe size to get the US size. For example, a size 1 in UK children’s shoes, will be a US 1.5 which is 3 ⅞ inches.
For women, to get the US size equivalent of your UK shoe size, add two (2) sizes up to your existing UK size. In this case, a UK women’s shoe size 4.5 is a US 6.5 or 9 ⅙ inches.
The UK standard is considered to be the oldest used shoe sizing metric in the world, dating back to as early as 1324 when it was made the standard English shoe measurement by King Edward II.
The British shoe size standard is based on the measurement of the ‘shoe last’ which is typically made of wood, but could also be from other materials. This shoe frame measures 13 to 17 mm more than the natural shoe size from heel to toe.
Under the UK standard, there is the distinction between adult and children’s shoe sizes. Men and women also have specified measurements. This is different than the Paris point-based system which has a uniform standard for children’s and adults’ shoes.
The UK shoe size standard only considers the length of the foot, but not the width. Shoes then tend to have different width measurements depending on the ‘shoe last’ used by the brand.
Each size in UK shoe sizing has an 8.46 mm (or one-third of an inch) difference. The half-sizes (4.23 mm) difference were per pair were introduced in 1880 to ensure better fit.
Generally, the UK’s shoe sizing standard is also used in Australia. Other countries such as the US, China, Japan, and even other European countries like France also uses their own shoe size standard.
What is a shoe size 40 in US?
The number does not correspond to the size of the shoe in inches or centimeters. An EU shoe size 40 in US will be different for men or women. Check our EU shoe size to US shoe size table here.