Brand-specific crosswalk; other brands may fit differently.
Korean Size Converter
Convert your size to Korean sizes before you shop in Korea.
✓ No sign-up✓ Works on your phone✓ Sources shown
Your result will appear here
Choose your current size and we’ll translate it into the Korean label you’re likely to see.
Sources · Last checked Sep 7, 2026
Brand-specific crosswalk; some adjacent US sizes share a KR length.
Big-kids range only in this first release; check the product chart.
Reviewed but not used as a cross-country clothing conversion table.
How Korean sizing works
Korean shoe listings commonly show the length in millimeters. A 245 label means 245 mm. International conversions are not perfectly universal, so this tool follows published Nike Korea crosswalks and clearly labels the result as an estimate.
Measure before you buy
Stand on paper in the socks you plan to wear, mark heel and longest toe, and measure both feet. Use the longer foot. The number printed by a brand may not equal your exact foot length, so always check that product’s own chart.
What this version does not guess
Women’s and men’s clothing and bra sizes vary too much by brand and construction for one safe international answer. We reviewed Korean apparel standards but do not present an invented universal conversion.
Quick questions
Is Korean shoe size the same as Japan?
Both often use foot-length based labels, but Korea usually prints millimeters while Japan commonly prints centimeters. Brand charts can still differ.
What if I am between sizes?
Check the exact brand chart and fit notes. Width, last shape and shoe type can change the best choice.
Can I use this for every brand?
No. Treat it as a shopping starting point based on the cited brand chart, not a guarantee.