Calculation method
S₂ = f(S₁, Lₚ)In the official Chinese system the CN number is the foot length in millimetres: CN 250 corresponds to 25.0 cm. Marketplace labels may differ, so the brand chart remains decisive.
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HOW IT WORKS
A result to understand, not just read.
Convert shoe sizes among EU, UK, US and Chinese CN systems using foot length as the most useful cross-check.
FREQUENTLY ASKED QUESTIONS
How does international shoe size converter work?+
In the official Chinese system the CN number is the foot length in millimetres: CN 250 corresponds to 25.0 cm. Marketplace labels may differ, so the brand chart remains decisive.
What should I check before relying on the result?+
Last shape and brand grading vary, and half sizes are not universal. Try footwear on or use the manufacturer’s chart whenever possible.
RESULT GUIDE
How to use international shoe size converter
Convert shoe sizes among EU, UK, US and Chinese CN systems using foot length as the most useful cross-check.
Practical example
- Measure both feet while standing, use the longer one and compare the result with the shoe maker’s chart.
Last shape and brand grading vary, and half sizes are not universal. Try footwear on or use the manufacturer’s chart whenever possible.
How to interpret the result
- Leave appropriate toe room and consider socks, width and the intended activity when choosing between sizes.
- Change one input at a time to understand which assumption has the greatest effect on the result.
What the estimate does not include
- Last shape and brand grading vary, and half sizes are not universal. Try footwear on or use the manufacturer’s chart whenever possible.
- Use the result as a planning aid and confirm sensitive financial, health or animal-care decisions with the relevant document or qualified professional.
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We try to avoid intrusive banners, autoplay videos, aggressive advertising links and misleading patterns. If this service helped you, you can support it with a voluntary contribution that helps cover its costs, improve it and keep it available to everyone.
Who’s behind CalcuPopSupport CalcuPopCard via Stripe or PayPalStripe or PayPal handles your payment. CalcuPop never sees or stores your card details.