Shoe Size Converter – US, UK and EU Sizes
Ordering shoes online should be simple. You find a pair you love, pick your size, and wait for the parcel.
Shoe Size Converter
EU sizes are approximate and vary by brand. Always check the shop’s own size chart before you order.
Then the parcel arrives, and the shoes are a size too small. The label says the right number, but the fit says otherwise.
The problem is rarely the shop. Shoe sizes change between the US, the UK, and Europe, and men’s and women’s sizes use different scales.
A men’s US 9 is a UK 8.5 and an EU 42.5. A women’s US 8 is a UK 6 and an EU 39. The numbers look close, but they are not the same.
This free shoe size converter turns one size into the other three in seconds. Pick your size, and it shows the US, UK, and EU match, plus the matching size in the other gender’s scale.
Men’s and women’s scales add a second twist. A women’s US size is 1.5 higher than the same foot in men’s sizes, so borrowing the other scale without converting is a common mistake.
The table below does the lookup for you. It covers men’s US 6 to 13 and women’s US 5 to 12, with the UK and EU match for every size.
How to Use This Calculator
Example
Say you wear a men’s US 9, and you are shopping on a UK site. Enter men’s, US, and 9.
The table gives UK 8.5 and EU 42.5. So you would order a UK 8.5, or an EU 42.5 on a European site.
The tool also shows the women’s match. A men’s US 9 is a women’s US 10.5, because women’s sizes run 1.5 sizes higher.
Try it the other way round. A women’s US 8 converts to a men’s US 6.5, a UK 6, and an EU 39.
Check the EU number before you pay. An EU 42.5 from one brand can feel a little different from another, so the shop’s chart is worth a quick look.
That is the whole job. One known size, one lookup, and every other size you need for the order.
The Bottom Line
Shoe sizes are not maths. They are lookup tables, and guessing from them is how wrong sizes arrive.
Check the size before you order, and check the EU size twice. Brands shape their shoes a little differently, so the shop’s own chart is the final word.
Keep this converter open while you shop. One quick lookup saves a return, a wait, and a pair of shoes that never gets worn.
Order the size the table gives you, not the number you remember from another country. The right lookup beats a good guess every time.
Frequently Asked Questions
Why do US, UK, and EU sizes differ?
Each system grew up on its own scale, so the same foot gets a different number in each one. There is no formula, which is why this tool uses lookup tables.
How do men’s and women’s sizes relate?
Women’s US sizes run 1.5 sizes higher than men’s. A men’s US 9 is a women’s US 10.5, and a women’s US 8 is a men’s US 6.5.
Why is my EU size sometimes wrong?
EU sizes are approximate and vary by brand. Two brands can mark the same foot with a different EU number, so always check the shop’s own size chart.
What if my size is between two sizes?
Pick the larger size. Shoes that are slightly roomy can take an insole, but shoes that are too tight rarely stretch enough to feel good.
Can I use this for children’s shoes?
No. Children’s sizes use a different scale, and this tool only covers adult men’s and women’s sizes. Check the shop’s children’s chart for a child’s size.
Should I measure my feet first?
Yes, if you are unsure. Measure both feet in the evening, use the longer foot, and match it to the shop’s size chart before you order.
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