US to UK Shoe Size Calculator
Convert US shoe sizes to UK sizes accurately for men, women, and children with detailed conversion formulas
Convert US to UK Shoe Size
Enter your US shoe size (e.g., 8, 8.5, 9)
Men and women have different conversion formulas
Adult and children sizing have different conversion rules
Conversion Results
Enter a US shoe size to see the UK conversion
Size Conversion Analysis
Common Conversions
Men's Sizes
US 8 → UK 9
US 9 → UK 10
US 10 → UK 11
US 12 → UK 13
Women's Sizes
US 6 → UK 8
US 7 → UK 9
US 8 → UK 10
US 10 → UK 12
Children's Sizes
US 10 → UK 10.3
US 12 → UK 12.3
US 1 → UK 1.3
Conversion Formulas
Men's Formula
UK Size = US Size + 1
US men's is 1 size smaller
Women's Formula
UK Size = US Size + 2
US women's is 2 sizes smaller
Children's Formula
UK Size = US Size + 0.33
US child is 1/3 inch smaller
Sizing Tips
UK sizing is universal for men/women
US has different formulas by gender
Children's sizing differs by 1/3 inch
Brand sizing may vary from standard
Understanding US to UK Shoe Size Conversion
US Sizing System
The US sizing system uses different formulas for men and women based on foot length in inches. This creates the need for gender-specific conversions.
Conversion Rules
- •Men: UK size = US size + 1
- •Women: UK size = US size + 2
- •Children: UK size = US size + 0.33
- •UK uses universal sizing for all genders
UK Sizing System
The UK sizing system uses a single formula for all adults: UK size = 3 × foot length [in] - 23. This creates a universal sizing approach.
Key Formulas:
US Men: US = 3 × FL[in] - 22
US Women: US = 3 × FL[in] - 21
US Child: US = 3 × FL[in] - 9.67
UK: UK = 3 × FL[in] - 23
Important: UK sizing is more standardized across brands compared to US sizing. Always verify with brand-specific size charts when possible.