Units calculator
Shoe Size Converter
Convert approximate adult shoe sizes between US, UK, and EU sizing.
Formula
Shoe size approximation
Shoe sizing varies by brand, country, last, and style. Check the brand's size guide before buying.
EU is estimated from selected US size; UK is about US - 1 for men and US - 2 for women
US men's 9 is roughly UK 8 and EU 42.
FAQs
Are shoe size conversions exact?+
No. They are approximate and brand-dependent.
How does the Shoe Size Converter calculate the result?+
It uses the Shoe size approximation: EU is estimated from selected US size; UK is about US - 1 for men and US - 2 for women. US men's 9 is roughly UK 8 and EU 42.
What information do I need to use the Shoe Size Converter?+
Convert approximate adult shoe sizes between US, UK, and EU sizing.
How accurate is the Shoe Size Converter?+
Shoe Size Converter applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the Shoe Size Converter result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Units guide
How to use the Shoe Size Converter
Convert approximate adult shoe sizes between US, UK, and EU sizing. The page also explains the shoe size approximation and shows a practical example: US men's 9 is roughly UK 8 and EU 42.
- 1
Enter your details
Enter the source value, then choose the units or values you want to convert.
- 2
Check the calculation
Review the result alongside the shoe size approximation: EU is estimated from selected US size; UK is about US - 1 for men and US - 2 for women.
- 3
Compare scenarios
Change one or more inputs to see how they affect the shoe Size Converter result before you use the estimate.
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