Shoe Size Converter
Shoe Size Converter
Convert shoe sizes between US, UK, EU and Japan, or use your foot length to find an approximate size. Choose men’s, women’s or kids’ footwear before calculating.
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International Shoe Size Chart
| US | UK | EU | Japan | Foot Length |
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How to Measure Your Foot
Place Your Foot
Stand on a sheet of paper with your heel against a wall. Keep your weight naturally distributed.
Mark the Longest Point
Mark the end of your longest toe. Some people have a second toe that extends farther than the big toe.
Measure Both Feet
Measure both feet and use the longer measurement when selecting footwear.
Tips for Getting the Right Fit
Measure at the end of the day
Feet can expand during the day, so measuring later can give you a useful reference for everyday footwear.
Use the longer foot
It is normal for one foot to be slightly larger than the other. Use the longer foot when comparing measurements.
Think about width
Length alone does not determine fit. Foot width and the shape of the toe box can also affect comfort.
Check the brand chart
Different brands and models can use different sizing standards. Always check the manufacturer’s chart before ordering.
Consider the socks
If you normally wear thick socks with the footwear, measure while wearing the type of socks you expect to use.
Leave toe room
Your longest toe should not be pressed against the front of the shoe. The exact amount of room depends on the shoe type.
How Shoe Size Conversion Works
Shoe sizing systems use different scales, which means a US size cannot simply be treated as the same number in the UK or EU. A conversion chart provides an approximate equivalent between the systems.
The most useful physical measurement is foot length. Major footwear brands publish their own charts connecting regional sizes with heel-to-toe length, but their numbers can differ slightly. Nike and adidas both provide brand-specific footwear charts that include regional sizes and foot-length measurements. :contentReference[oaicite:1]{index=1}
US, UK and EU Shoe Sizes
US, UK and EU footwear labels use different numbering systems. A US size therefore needs to be converted rather than copied directly into another country’s size field.
EU sizing is also not simply the same numerical scale as US or UK sizing. The conversion shown above is an approximate guide, and the retailer’s individual chart should be used for the final purchase decision.
How to Find Your Shoe Size at Home
Place your foot on paper while standing naturally. Mark the heel and the end of your longest toe, then measure the distance between those points. Repeat the process for both feet.
Use the longer foot measurement when comparing against a manufacturer’s chart. This gives you a better starting point than measuring only one foot.
Why Shoe Size Can Vary Between Brands
A size label does not guarantee that two shoes will have identical fit. Brands can use different lasts, toe-box shapes, materials and sizing standards.
Nike, for example, publishes separate men’s and women’s charts and notes that the CM value shown on footwear labels is not necessarily identical to measured foot length. :contentReference[oaicite:2]{index=2}
Does Foot Width Matter?
Yes. Two people with the same foot length can have very different widths. A shoe can therefore feel too tight even when the length appears correct.
Width options also differ between brands. Nike, for example, distinguishes standard, wide and extra-wide footwear and provides additional information about toe-box girth. :contentReference[oaicite:3]{index=3}
Women’s Shoe Sizes
Women’s footwear commonly uses a US size scale that differs from men’s. When converting a women’s size, make sure the converter is set to the women’s option rather than assuming the men’s scale applies.
Men’s Shoe Sizes
Men’s footwear uses its own US sizing scale. The UK and EU equivalents should therefore be interpreted using a men’s conversion rather than directly comparing the US number with a women’s chart.
Kids’ Shoe Sizes
Children’s footwear uses different sizing ranges and should not be converted using an adult chart. Foot length is particularly useful when checking children’s footwear because children can move between sizes relatively quickly.
Why Measuring Foot Length Helps
Regional labels are useful for conversion, but foot length gives you a physical measurement to compare against a brand’s own chart. This is especially helpful when shopping online or buying footwear internationally.
Shoe Size Converter FAQs
How do I convert my shoe size?
Select men’s, women’s or kids’ footwear, choose your starting sizing system and enter the size. The converter will display approximate US, UK, EU and Japanese equivalents.
How do I convert US shoe size to UK?
Select US as the starting system, enter your size and choose the appropriate men’s, women’s or kids’ category. The calculator will display the corresponding UK value.
How do I convert US shoe size to EU?
Select US as your starting system and enter the size. The result includes an approximate EU equivalent.
How do I convert UK shoe size to US?
Select UK as the starting system, choose the footwear category and enter your UK size. The converter will show the approximate US size.
How do I convert EU shoe size to US?
Select EU as the starting system and enter the size printed on the footwear. The calculator will provide an approximate US equivalent.
Is US shoe size the same as UK?
No. US and UK footwear use different sizing scales, so the numbers should not be treated as interchangeable.
Is men’s and women’s shoe sizing the same?
No. Men’s and women’s US footwear use different size scales. Always select the correct category when converting.
How do I measure my foot for shoes?
Stand on paper with your heel against a wall, mark the end of your longest toe and measure the distance between the two points. Repeat the process for both feet.
Should I measure both feet?
Yes. Feet can differ slightly in length. Use the longer foot when comparing your measurement with a shoe brand’s chart.
Is foot length the same as the CM size on a shoe?
Not necessarily. Some brands distinguish between the physical foot length and the CM value printed on a shoe or box. Check the brand’s own chart for clarification. :contentReference[oaicite:4]{index=4}
Why do shoes from different brands fit differently?
Brands can use different lasts, shapes, materials, toe boxes and sizing standards. A numerical size is therefore only one part of determining fit.
What if I am between two shoe sizes?
Check the manufacturer’s chart and consider the shoe’s construction, material and intended use. Width and toe-box shape can also influence how the shoe feels.
Does shoe width matter?
Yes. Foot length alone does not describe the complete fit. Width and toe-box space can make a significant difference.
Which foot should I measure?
Measure both and use the longer measurement when checking a size chart.
When is the best time to measure my feet?
Measuring later in the day can be useful because feet can change in size during the day.
Can I use this converter for every brand?
It provides general conversion guidance, but it cannot account for every brand’s individual fit. Always check the manufacturer’s size chart when purchasing.
Can I use this for sneakers and casual shoes?
Yes, as a general starting point. However, sneakers can have different toe-box and width characteristics, so the manufacturer’s chart remains important.
Can I use this for boots?
You can use it as a starting point, but boots can fit differently depending on their construction, socks, shaft design and toe shape.
Can I use this for children’s shoes?
Yes. Select Kids’ before converting. For children, measuring foot length and checking the manufacturer’s chart is especially useful.