Buying shoes online from another country? Just enter your size and our free shoe size converter instantly shows your equivalent in US, UK, EU, and centimeter measurements. Works for men, women, and kids. Never order the wrong size again.
Modify the values and click the calculate button to use
| US/CA | UK/IN | EU | JP/MX | CN | in | cm |
|---|---|---|---|---|---|---|
| 4 | 2 | 34 | 21 | 32 | 8.3 | 21.2 |
| 4.5 | 2.5 | 34 | 21.5 | 33 | 8.5 | 21.6 |
| 5 | 3 | 35 | 22 | 34 | 8.7 | 22 |
| 5.5 | 3.5 | 36 | 22.5 | 35 | 8.8 | 22.4 |
| 6 | 4 | 36 | 23 | 36 | 9 | 22.9 |
| 6.5 | 4.5 | 37 | 23.5 | 37 | 9.2 | 23.3 |
| 7 | 5 | 38 | 23.5 | 37 | 9.3 | 23.7 |
| 7.5 | 5.5 | 38 | 24 | 38 | 9.5 | 24.1 |
| 8 | 6 | 39 | 24.5 | 39 | 9.7 | 24.6 |
| 8.5 | 6.5 | 39 | 25 | 40 | 9.8 | 25 |
| 9 | 7 | 40 | 25.5 | 41 | 10 | 25.4 |
| 9.5 | 7.5 | 41 | 26 | 42 | 10.2 | 25.8 |
| 10 | 8 | 41 | 26 | 42 | 10.3 | 26.2 |
| 10.5 | 8.5 | 42 | 26.5 | 43 | 10.5 | 26.7 |
| 11 | 9 | 43 | 27 | 44 | 10.7 | 27.1 |
| 11.5 | 9.5 | 43 | 27.5 | 45 | 10.8 | 27.5 |
| 12 | 10 | 44 | 28 | 46 | 11 | 27.9 |
| US/CA | UK/IN | EU | JP/MX | CN | in | cm |
|---|---|---|---|---|---|---|
| 6 | 5 | 38 | 23.5 | 37 | 9.3 | 23.7 |
| 6.5 | 5.5 | 38 | 24 | 38 | 9.5 | 24.1 |
| 7 | 6 | 39 | 24.5 | 39 | 9.7 | 24.6 |
| 7.5 | 6.5 | 39 | 25 | 40 | 9.8 | 25 |
| 8 | 7 | 40 | 25.5 | 41 | 10 | 25.4 |
| 8.5 | 7.5 | 41 | 26 | 42 | 10.2 | 25.8 |
| 9 | 8 | 41 | 26 | 42 | 10.3 | 26.2 |
| 9.5 | 8.5 | 42 | 26.5 | 43 | 10.5 | 26.7 |
| 10 | 9 | 43 | 27 | 44 | 10.7 | 27.1 |
| 10.5 | 9.5 | 43 | 27.5 | 45 | 10.8 | 27.5 |
| 11 | 10 | 44 | 28 | 46 | 11 | 27.9 |
| 11.5 | 10.5 | 45 | 28.5 | 47 | 11.2 | 28.4 |
| 12 | 11 | 45 | 29 | 48 | 11.3 | 28.8 |
| 12.5 | 11.5 | 46 | 29 | 48 | 11.5 | 29.2 |
| 13 | 12 | 46 | 29.5 | 49 | 11.7 | 29.6 |
| 13.5 | 12.5 | 47 | 30 | 50 | 11.8 | 30.1 |
| 14 | 13 | 48 | 30.5 | 51 | 12 | 30.5 |
This is where most people mess up. They measure their feet wrong. Then they wonder why their shoes don't fit. Here's the right way to do it:
Put the paper on the floor against a wall.
Stand on the paper with your heel touching the wall.
Mark the longest part of your foot (usually your big toe or second toe).
Measure the distance from the wall to your mark. That's your foot length.
Do it again for your other foot. They might be different sizes.
ðĄ Pro Tip: Measure your feet at the end of the day. Your feet swell as you walk around. Measuring in the morning might give you a size that's too small.
Mistake #1: Assuming All Brands Fit the Same
They don't. A size 9 in Nike is not the same as a size 9 in Adidas. Always check the brand's size chart.
Mistake #2: Forgetting About Width
Most size charts only give you length. But width matters too. If you have wide feet, you might need to go up a half size or look for "wide" options.
Mistake #3: Using the Wrong Conversion Chart
There are different charts for men, women, and kids. Using the wrong one will give you the wrong size.
Mistake #4: Not Measuring Both Feet
Your feet are probably different sizes. Always go with the bigger foot.
Here's something that confuses a lot of people. Men's and women's sizes are different. Even within the same system.
In the US, a women's size 8 is about a men's size 6.5. So if you're a woman buying men's shoes, you need to go down about 1.5 sizes.
But here's the thing: it's not always exact. Some brands have different conversion rates. So always check.
Kids' sizes are a whole different ball game. They use a different numbering system. And they change as kids grow. Here's a quick guide:
Infant
0-4
Babies not walking yet
Toddler
4-10
Kids who are walking
Youth
10-13
Older kids
Adult
1+
Teens and adults
But here's the tricky part: a youth size 13 is the same as an adult size 1. So if your kid is between sizes, you might need to decide whether to go with youth or adult.
Read Reviews: Look for reviews that mention sizing. Do people say the shoes run big or small? That's gold.
Check the Brand's Size Chart: Most brands have their own size chart. Use it. Don't rely on a generic chart.
Measure Your Foot in CM: This is the most accurate way. Measure your foot in centimeters, then compare to the brand's size chart.
Order Two Sizes: If you're really unsure, order two sizes. Keep the one that fits. Return the other. Most online stores have free returns.
You've probably seen one at a shoe store. It's that metal thing you stand on. It measures both length and width.
The Brannock Device is the gold standard for measuring feet. It's more accurate than measuring at home. But you can still get a good measurement at home if you follow our guide above.
Weight gain or loss: Your feet can get wider or narrower.
Pregnancy: Many women's feet grow during pregnancy.
Aging: Your feet can flatten out as you get older.
Injuries: A broken foot or ankle can change your size.
So don't assume you're the same size you were 10 years ago. Measure your feet every year or two.
What does a half size mean? A half size is about 1/6 of an inch longer. So a 9.5 is slightly bigger than a 9. But not all brands make half sizes, and some fit differently than others.
If you're between sizes:
Did you know that shoe sizing has been around for centuries? The first standardized system was created in England in the 1300s. It was based on the barleycorn unit.
Today, we have multiple systems. But they all trace back to those early days. Pretty cool, right?
There are two ways to measure your foot. Heel-to-toe is what most people use â measure from your heel to your longest toe. That's the standard method.
But some experts say heel-to-ball is more important â the distance from your heel to the ball of your foot. Why? Because that's where your foot bends when you walk. If your shoe doesn't bend at the right spot, it won't fit well, even if the length is right.
So if you're having trouble finding shoes that fit, try measuring your heel-to-ball distance. It might explain why some shoes feel wrong even when they're the "right" size.
But remember: these are rough estimates. Always use a proper conversion chart or calculator for accuracy.
Our calculator is based on the most accurate conversion data available. We've cross-referenced multiple sources to make sure our numbers are right. Plus, we update our data regularly. So you're always getting the most current information.
And if you have any questions? Just drop us a line. We're here to help.
To convert US to UK, subtract 1 from your US size. So a US size 9 becomes a UK size 8. But remember, this is for men's sizes. Women's sizes are different. A US women's size 9 is a UK women's size 7. Always double-check with a conversion chart.
Different brands use different lasts (the forms they build shoes on). So a size 9 in Nike might fit like a size 8.5 in Adidas. Always check the brand's specific size chart. And read reviews to see if people say the shoes run big or small.
Place a piece of paper against a wall. Stand on it with your heel touching the wall. Mark the longest part of your foot. Measure the distance from the wall to the mark. Do it for both feet. Use the bigger measurement. Measure at the end of the day when your feet are most swollen.
The US and UK systems are both based on the barleycorn unit. But they start at different points. A US size 9 is a UK size 8. The difference is 1 size for men's shoes. For women's, the difference is 2 sizes. So a US women's 9 is a UK women's 7.
If your shoes feel tight across the widest part of your foot, or you can see your foot bulging over the sole, you likely need wide-width shoes. Measure the width of your foot at its widest point and compare to a width chart. Many brands offer wide (E/2E) and extra-wide (4E) options.
End of the day. Your feet naturally swell throughout the day from walking and standing. Measuring in the morning can give you a size that's too small by afternoon. Always measure when your feet are at their largest.
Every year or two. Your feet change over time due to weight changes, aging, pregnancy, or injuries. Don't assume you're the same size you were a decade ago.
Yes. A youth size 13 is equivalent to an adult men's size 1 or women's size 2-3. Kids' sizes go up to 13, then switch to adult sizing starting at 1. This can be confusing when shopping for growing kids.
Women: 3L - 21 | Men: 3L - 22
L = foot length in inches
Adult: 3L - 23
L = foot length in inches
Size = (3/2)L + 2
L = foot length in cm
JP/MX: Size = L (cm) | China: Size = 2L - 10 (cm)