Convert approximate shoe sizes between US, UK, EU, and centimetres.
For general guidance only. Size standards differ between brands and styles; check the retailer’s measurements before purchasing.
Not sure what shoe size to buy when shopping online? Our free Shoe Size Converter helps you compare women’s shoe sizes across different countries. You can check US, UK, and European sizes in seconds and find a starting point for choosing shoes that fit comfortably.
Whether you are buying sneakers, sandals, boots, or heels, knowing your shoe size can make shopping easier.
At Style With Emma, we believe women over 50 should never have to choose between comfort and style. The right shoes should support your feet, match your outfits, and feel good throughout the day.
How to Use Our Shoe Size Converter
Converting your shoe size is simple. You only need to know your current shoe size and the sizing system you want to compare.
Follow these steps:
- Choose your current sizing system. Select US, UK, EU, or another available option.
- Enter your shoe size. Choose the size you normally wear.
- Select the sizing system you need. Choose the country or system you want to convert to.
- Convert your size. View the closest matching shoe size.
- Check the brand’s size chart. Compare your foot length and width before ordering.
Remember that shoe size conversions are estimates. Different brands may use different measurements, even when the size labels look the same.
What Is a Shoe Size Converter?
A shoe size converter is an online tool that helps you compare footwear sizes used in different countries.
Shoe sizes are not labeled the same way around the world.
For example, a woman’s US size 8 may be listed as a UK size 5.5 or an EU size 39 by one brand. Another brand may use a slightly different conversion.
A shoe size converter helps you understand these differences when shopping from international stores.
The most common systems include:
- US shoe sizes: Used by many American footwear brands.
- UK shoe sizes: Commonly used by British footwear retailers.
- EU shoe sizes: Used by many European shoe brands.
- Centimeter measurements: Used in some sizing systems and brand charts to describe foot or shoe length.
Shoe size labels are useful, but your actual foot measurements are important when choosing the best fit.
Women’s Shoe Size Conversion Chart
The table below compares women’s shoe sizes using one common brand chart.
| US Women’s Size | UK Size | EU Size |
|---|---|---|
| 5 | 3.5 | 36 |
| 5.5 | 4 | 36⅔ |
| 6 | 4.5 | 37⅓ |
| 6.5 | 5 | 38 |
| 7 | 5.5 | 38⅔ |
| 7.5 | 6 | 39⅓ |
| 8 | 6.5 | 40 |
| 8.5 | 7 | 40⅔ |
| 9 | 7.5 | 41⅓ |
| 9.5 | 8 | 42 |
| 10 | 8.5 | 42⅔ |
| 10.5 | 9 | 43⅓ |
| 11 | 9.5 | 44 |
| 11.5 | 10 | 44⅔ |
| 12 | 10.5 | 45⅓ |
Important: This chart follows a common adidas women’s sizing system. Nike and other brands may show different UK or EU equivalents for the same US size.
Always use the size chart provided by the store selling the shoes.
How to Convert US Women’s Shoe Sizes to UK Sizes
American and British women’s shoe sizes use different numbers.
For example, a US women’s size 8 is a UK 6.5 in the adidas chart, while some other brands may label the equivalent as UK 5.5.
Because these differences exist, there is no single conversion rule that works for every shoe brand.
To convert correctly:
- Find your usual US women’s size.
- Check the brand’s US-to-UK conversion chart.
- Find the closest UK size.
- Compare the recommended foot length.
- Read any fit notes for the shoe.
This is especially useful when ordering shoes from British online stores.
How to Convert UK Women’s Shoe Sizes to US Sizes
If you are buying shoes from an American retailer, you may need to convert your usual UK shoe size.
For example, a UK women’s size 6 may be a US size 7.5 in one brand or a different US size in another.
Instead of relying only on a number, use the retailer’s chart.
If you know your foot length, compare that measurement with the sizes listed by the brand.
This gives you another way to check your choice before ordering.
How to Convert European Shoe Sizes to US Sizes
European shoe sizes usually use numbers such as 36, 37, 38, 39, 40, and 41.
American women’s shoe sizes commonly use numbers such as 6, 7, 8, 9, and 10.
For example, EU size 40 matches US women’s size 8 in the adidas chart, but Nike lists EU 40 alongside US women’s size 8.5.
Both are examples of real brand conversions.
This is why your EU shoe size may not match the same US size across every store.
Use our Shoe Size Converter for a general comparison, then check the brand’s own sizing information.
How to Measure Your Shoe Size at Home
If you do not know your current shoe size, measuring your feet can help you find a suitable starting point.
You will need:
- Two sheets of paper
- A pencil
- A ruler or measuring tape
- A flat floor
- The socks you plan to wear with your shoes
Step 1: Place Your Foot on Paper
Put a sheet of paper on a hard, flat floor.
Stand on the paper with your weight resting naturally on your foot.
Keep your heel flat.
Step 2: Mark Your Heel and Longest Toe
Mark the back of your heel and the tip of your longest toe.
Your longest toe is not always your big toe.
Keep the pencil upright so your marks are as accurate as possible.
Step 3: Measure Your Foot Length
Use a ruler to measure the distance between the two marks.
Record the number in centimeters or millimeters.
For example, your foot may measure 24.5 cm from heel to toe.
Step 4: Measure Your Other Foot
Repeat the process with your other foot.
Many people have one foot that is slightly longer or wider than the other.
Use the larger foot measurement when checking a shoe size chart.
Step 5: Compare Your Measurement With the Brand’s Chart
Find your foot length in the manufacturer’s size chart.
Choose the matching size, then check the shoe’s width and fit information.
Do not assume that the centimeter number printed on every shoe label is exactly the same as your measured foot length.
Some brands use different measurements for their shoe labels.
How to Measure Your Foot Width
Foot length is important, but width also affects how shoes fit.
A shoe may be the correct length and still feel uncomfortable if it is too narrow.
To check your foot width:
- Stand on a flat surface with your weight on your foot.
- Place a measuring tape around the widest part of your forefoot.
- Keep the tape snug without squeezing.
- Record the measurement.
- Compare it with the shoe brand’s width chart.
You can also use a printable width guide if the brand provides one.
Women’s shoes may be sold in narrow, standard, wide, or extra-wide options.
The letters used for these widths can differ between brands.
Why Do Shoe Sizes Differ Between Brands?
Have you ever worn size 8 shoes from one store but needed size 8.5 or 9 from another?
This happens because footwear brands use different designs, shoe shapes, and sizing charts.
Several factors can affect the fit.
Different Shoe Shapes
Every shoe is built around a foot-shaped form called a last.
Some shoes have narrow toes, while others have a wider front.
Two shoes with the same size label may feel different because their shapes are different.
Different Materials
Leather, canvas, mesh, and synthetic materials may feel different around your feet.
Some materials are flexible, while others hold their shape.
Different Shoe Styles
A running shoe may fit differently from a high heel or a leather boot.
Even shoes made by the same company may have different fits.
Different International Size Charts
US, UK, and EU sizes are not converted in exactly the same way by every brand.
This makes brand-specific size charts especially useful.
What Shoe Size Should I Buy If I Am Between Sizes?
If your foot measurement falls between two sizes, the best choice depends on the shoe’s shape and fit.
A larger size may be more comfortable if the smaller one presses against your toes.
However, shoes that are too large can allow your heel to slip.
Before choosing, consider:
- The length of your longest toe
- The width of your forefoot
- The shape of the toe box
- Whether you plan to wear thick socks
- The type of shoe
- Any fit advice from the manufacturer
If possible, try both sizes and walk around in them.
Your toes should have room to move without your feet sliding around.
How Should Shoes Fit Properly?
Well-fitting shoes should feel comfortable when you stand and walk.
The right size should offer enough space for your toes while keeping your heel secure.
Look for these signs:
- Your toes do not press against the front.
- The sides do not squeeze your feet.
- Your heel does not slip excessively.
- You can walk without rubbing or pinching.
- The shoe feels secure without being too tight.
Do not depend on painful shoes becoming comfortable after several weeks.
A shoe that feels too small when you first try it may not be the best choice for your feet.
Can Your Shoe Size Change After 50?
Yes. Your shoe size can change as you get older.
Some adults notice changes in the length, width, or shape of their feet over time.
Changes in soft tissues, arches, and foot structure can affect how shoes fit.
You may find that shoes you wore comfortably in your thirties feel too narrow in your fifties or sixties.
This does not always mean you need a longer shoe. Sometimes, you need more width or a different shoe shape.
Measure both feet again if your usual shoes no longer feel comfortable.
How to Choose Comfortable Shoes After 50
Choosing comfortable shoes after 50 does not mean giving up your personal style.
You can still enjoy stylish sneakers, sandals, ankle boots, flats, and heels.
The key is finding shoes that suit your feet and daily activities.
Choose Shoes With Enough Toe Room
Look for shoes that allow your toes to move naturally.
A wider toe box may feel better if narrow shoes cause pressure.
Look for a Secure Fit
Shoes with adjustable straps, laces, or secure fastenings may help you control the fit.
This can be useful when your feet are between sizes.
Check the Heel Height
Choose a heel height that feels stable when walking.
If you enjoy heels, try different heel shapes and heights to find a comfortable option.
Consider the Sole
The sole affects how the shoe feels against the ground.
Look for shoes with suitable grip, flexibility, and support for the activity.
Match Shoes to Your Daily Routine
Walking shoes, work shoes, and special occasion shoes have different purposes.
Choose footwear that fits the way you plan to use it.
What Is the Difference Between Regular and Wide Shoe Sizes?
Regular and wide shoe sizes describe the width of the shoe, not its length.
For example, two pairs may both be labeled US women’s size 8, but one may have more room across the forefoot.
Some brands offer:
- Narrow
- Standard or medium
- Wide
- Extra wide
A wide shoe is not simply a longer shoe.
If your toes feel squeezed but the shoe length seems correct, you may benefit from trying a wider width instead of a larger length size.
Are Men’s and Women’s Shoe Sizes the Same?
No. US men’s and women’s shoe sizes normally use different numbering systems.
For example, a US men’s size 7 and a US women’s size 7 do not usually represent the same length.
Men’s and women’s shoes may also differ in width and overall shape.
If you are buying unisex shoes, check which sizing system the brand uses.
Some brands list both men’s and women’s sizes on the same chart.
Is Shoe Size the Same as Foot Length?
Not exactly.
Foot length is the physical distance from your heel to your longest toe.
Shoe size is the label a manufacturer gives to footwear designed for a particular range of foot measurements.
Two brands may recommend different shoe sizes for the same foot length.
Also, the inside of a shoe needs more room than the exact length of your foot.
This is why your measured foot length should be compared with the manufacturer’s chart.
Common Mistakes When Converting Shoe Sizes
Using a General Chart Without Checking the Brand
General conversion charts are useful, but brands may use different values.
Always check the actual shoe’s size guide.
Measuring Only One Foot
Your feet may be different sizes.
Measure both feet and use the larger measurement when choosing a starting size.
Ignoring Foot Width
A shoe may be long enough but too narrow.
Check width options if shoes often squeeze the sides of your feet.
Measuring While Sitting
Standing allows your foot to spread naturally under your body weight.
Measure while standing when possible.
Using Your Old Shoe Size
Your feet may change over time.
Take fresh measurements if your current shoes no longer fit well.
Buying Shoes That Feel Painfully Tight
Do not choose shoes that cause pain just because the size label matches what you normally wear.
Fit and comfort matter more than the number.
Frequently Asked Questions About Shoe Size Conversion
What is a shoe size converter?
A shoe size converter is an online tool that compares footwear sizes between different countries, including US, UK, and EU systems.
How do I convert US shoe size to UK size?
Enter your US shoe size into a converter and select UK sizing. Check the shoe brand’s own chart because conversions may vary.
What is a US women’s size 8 in UK sizes?
It depends on the brand. Adidas lists a US women’s 8 as UK 6.5, while Nike lists it as UK 5.5.
What is a US women’s size 8 in EU sizes?
Adidas lists US women’s size 8 as EU 40, while Nike lists it as EU 39. Always check the manufacturer.
What is an EU size 40 in US women’s shoes?
It depends on the brand. EU 40 is US women’s size 8 in the adidas chart and US women’s size 8.5 in the Nike chart.
Are US and UK women’s shoe sizes the same?
No. The two systems use different numbers, and the exact conversion can vary between brands.
How can I find my shoe size at home?
Measure both feet from heel to longest toe while standing. Compare the larger measurement with the manufacturer’s shoe size chart.
Should I measure my feet in inches or centimeters?
Either can work if the brand provides a matching chart. Centimeters and millimeters are often useful when comparing foot measurements.
Is foot length the same as shoe size?
No. Foot length is a physical measurement, while shoe size is a label chosen by the manufacturer.
Can shoe size change after 50?
Yes. Foot length, width, and shape may change with age. Measuring again can help you find shoes that fit your current feet.
What if one foot is bigger than the other?
This is common. Use the larger foot as your starting point, then check that both shoes fit securely and comfortably.
Should I buy a bigger shoe size if I have wide feet?
Not always. If the length is correct, try a wider shoe rather than automatically choosing a longer size.
Are men’s and women’s shoe sizes different?
Yes. US men’s and women’s sizing systems use different numbers. Always check the correct chart.
Is a shoe size converter accurate?
A shoe size converter can provide a useful estimate. The best results come from checking the specific brand’s chart and comparing it with your foot measurements.
What time of day should I measure my feet?
Late afternoon can be useful because feet may become a little larger during the day. Measure when your feet are not unusually swollen.
Can I wear stylish shoes after 60?
Of course. Women over 60 can enjoy sneakers, boots, sandals, flats, and heels. Choose styles that fit well and feel comfortable for your activities.
Find Your Shoe Size and Walk With Confidence
The right shoes can make a big difference to how you feel throughout the day.
Whether you are shopping for everyday sneakers, comfortable sandals, work shoes, or a pair of heels for a special occasion, knowing your shoe size can make shopping easier.
Our free Shoe Size Converter helps you compare international shoe sizes and understand the numbers used by different footwear brands.
Remember that the best shoe size is the one that fits your feet comfortably, not simply the number you have worn for years.
Use the Shoe Size Converter above to find your closest size, then check the retailer’s measurements before buying.
Comfortable shoes and personal style can always go together.