Shoe Size Conversion Chart: US, EU, and UK Sizes Explained

Finding the right shoe size can be tricky, especially when you’re shopping online or switching between US, European, and UK sizing systems. Are you confused about converting from Euro sizes to US sizes? Perhaps you’re wondering about the difference a half size makes or how to accurately measure your feet. This comprehensive shoe size conversion chart will guide you through everything you need to know to find your perfect fit, no matter where you are or which sizing system is used.

Understanding Shoe Size Measurement

Before diving into the charts, it’s essential to understand how shoe size is measured. While using a ruler or even a Brannock device can give you an approximate foot length, remember that feet are three-dimensional. These tools provide estimations, and variations exist between brands. For example, you might find that Altra running shoes fit slightly differently compared to Brooks running shoes or Oboz hiking boots. Therefore, always consider trying on shoes whenever possible, but these charts are an excellent starting point for online shopping or when you need a quick conversion reference.

Women’s Shoe Size Conversion Chart

This chart provides conversions for women’s shoe sizes across US, Euro, and UK systems, along with measurements in inches and centimeters. If you’re trying to figure out “What is a size 38 in US women’s shoes?” this chart will tell you it’s approximately a US size 7.5.

US Sizes	Euro Sizes	UK Sizes	Inches	CM
4	35	2	8.1875″	20.8
4.5	35	2.5	8.375″	21.3
5	35-36	3	8.5″	21.6
5.5	36	3.5	8.75″	22.2
6	36-37	4	8.875″	22.5
6.5	37	4.5	9.0625″	23
7	37-38	5	9.25″	23.5
7.5	38	5.5	9.375″	23.8
8	38-39	6	9.5″	24.1
8.5	39	6.5	9.6875″	24.6
9	39-40	7	9.875″	25.1
9.5	40	7.5	10″	25.4
10	40-41	8	10.1875″	25.9
10.5	41	8.5	10.3125″	26.2
11	41-42	9	10.5″	26.7
11.5	42	9.5	10.6875″	27.1
12	42-43	10	10.875″	27.6

Men’s Shoe Size Conversion Chart

For men’s footwear, this chart offers a similar conversion guide. If you’re curious about “What is a size 40 in men’s shoes?” you’ll find it corresponds to a US size 9.5.

US Sizes	Euro Sizes	UK Sizes	Inches	CM
6	39	5.5	9.25″	23.5
6.5	39	6	9.5″	24.1
7	40	6.5	9.625″	24.4
7.5	40-41	7	9.75″	24.8
8	41	7.5	9.9375″	25.4
8.5	41-42	8	10.125″	25.7
9	42	8.5	10.25″	26
9.5	42-43	9	10.4375″	26.7
10	43	9.5	10.5625″	27
10.5	43-44	10	10.75″	27.3
11	44	10.5	10.9375″	27.9
11.5	44-45	11	11.125″	28.3
12	45	11.5	11.25″	28.6
13	46	12.5	11.5625″	29.4
14	47	13.5	11.875″	30.2
15	48	14.5	12.1875″	31
16	49	15.5	12.5″	31.8

Big Kid Shoe Size Conversion Chart (Ages 7 – 12)

As children grow, their shoe sizes change rapidly. This chart is for older kids, typically between 7 and 12 years old.

US Sizes	Euro Sizes	UK Sizes	Inches	CM
3.5	35	2.5	8.625″	21.9
4	36	3	8.75″	22.2
4.5	36	3.5	9″	22.9
5	37	4	9.125″	23.2
5.5	37	4.5	9.25″	23.5
6	38	5	9.5″	24.1
6.5	38	5.5	9.625″	24.4
7	39	6	9.75″	24.8

Little Kid Shoe Size Conversion Chart (Ages 4 – 7)

For younger children aged 4 to 7, use this chart to find the corresponding sizes.

US Sizes	Euro Sizes	UK Sizes	Inches	CM
10.5	27	9.5	6.625″	16.8
11	28	10	6.75″	17.1
11.5	29	10.5	7″	17.8
12	30	11	7.125″	18.1
12.5	30	11.5	7.25″	18.4
13	31	12	7.5″	19.1
13.5	31	12.5	7.625″	19.4
1	32	13	7.75″	19.7
1.5	33	14	8″	20.3
2	33	1	8.125″	20.6
2.5	34	1.5	8.25″	21
3	34	2	8.5″	21.6

Frequently Asked Questions About Shoe Sizing

Here are some common questions and tips to help you choose the right shoe size:

What if I’m between shoe sizes? It’s generally recommended to size up, especially for athletic and sports shoes like running shoes and hiking boots. This provides extra room for comfort and foot swelling during activities.
Does a 0.5 size difference really matter? Absolutely! Wearing shoes even half a size too small can lead to discomfort and injuries. Common issues for runners and hikers include blisters, loss of toenails, and bunions, all potentially caused by shoes that are just a bit too snug. Think of it like the small difference between 6 Euro To Us and slightly more – that small amount can make a big difference in comfort and value!
Is it normal for one foot to be larger than the other? Yes, it’s very common. Always buy shoes that fit your larger foot. You’re buying a pair, so ensure both feet are comfortable.
Should shoes fit tightly or loosely? Shoes should be neither too tight nor too loose. A good rule of thumb is the “thumb’s width” – you should be able to fit about a thumb’s width between your longest toe and the end of the shoe. For the heel, you should be able to snugly fit your index finger between your heel and the back of the shoe. If you don’t have enough space in either area, try a different size.
When is the best time to try on shoes? For runners, try on running shoes at the end of the day. Feet tend to swell throughout the day, especially after being on your feet or exercising. Trying shoes on when your feet are at their largest helps ensure they will remain comfortable even after longer runs.
Is this shoe chart a guaranteed fit? While these charts are helpful, they aren’t a guarantee. For the most accurate fit, especially for specialized footwear like running shoes or hiking boots, consider visiting a specialty store. If you’re in the Memphis, Tennessee area, come into our store, and our experienced fit experts can assist you!