Korean Shoe Size Converter
Compare Korean millimeter shoe sizes with US, UK, EU, and Japan size conventions.
Input basis
Brand last shape and gender scaling can shift the recommended size by ±0.5–1. Treat as a starting reference, not a fit guarantee.
How to use this result
Korean shoe sizing uses foot length in millimeters as the base unit. International conversion tables use that millimeter length as the anchor.
Brand-specific lasts and gender scales shift the recommended size by roughly ±1, especially for athletic and dress shoes. Treat the converted value as a starting reference, not a guarantee.
Examples
Common women size
Common men size
Kids reference
Common questions
Q.Why do brands differ?
Last shape, toe-box volume, gender-specific scaling, and country-specific conventions can shift the recommended size by half to a full size.
Q.Are men, women, and kids the same?
No. US sizes split by gender and kids use a separate scale, so the same Korean millimeter value maps to different US numbers depending on the category.
Before using Shoe Size
When it helps
Shoe Size is useful when Korea-specific living tasks such as units, area, sizing, and everyday local standards need quick comparison. It is designed for situations like turning 240 mm into ≈ US W 7, UK 5, EU 38 without leaving the browser workflow.
Suggested workflow
The basic workflow is simple: enter Korean size, adjust options when needed, and review International references. Before relying on the result, check the units, date, file type, rounding basis, or other assumptions that may change the outcome.
How to verify results
Shoe Size is a supporting utility for quick judgment. If the result affects contracts, filings, payments, security, customer data, or other important decisions, verify it against official sources, source systems, internal policy, or qualified review.
Data handling notice
Reference calculation: this tool provides quick estimates from your inputs and common public formulas.
No server storage: calculation inputs are only used to display the result and are not stored by ZHS.
Verification required: legal, tax, payroll, real-estate, or financial decisions require current official sources and expert review.