Understanding Shoe Size Conversions
Shoe sizing varies significantly between regions. A size 10 in the United States might be a size 44 in Europe. Additionally, men's and women's sizing charts differ even within the same country. This tool helps you navigate these differences instantly.
General Conversion Logic
While brand-specific charts exist, these general formulas provide a reliable approximation:
- US to UK (Men): Subtract 0.5 from US size (e.g., 10 US ≈ 9.5 UK).
- US to UK (Women): Subtract 1.5 from US size (e.g., 10 US ≈ 8.5 UK).
- EU (Men): Multiply US size by 1.5 (e.g., 10 US ≈ 45 EU).
- EU (Women): Multiply US size by 1.5 (e.g., 10 US ≈ 45 EU). *Note: EU unisex sizing is often calculated the same, but fit can differ.
- CM (Insole Length): CM is the actual length of your foot. EU size is roughly $1.5 \times \text{CM}$. You can measure your foot in CM to find the best fit across all systems.
Frequently Asked Questions (FAQ)
What is the difference between US and UK sizes?
UK sizes are historically roughly 1 size smaller than US sizes. However, this gap varies by gender (men's charts differ from women's) and brand (Nike vs. Adidas).
How do I measure my foot in CM?
Place your heel against a wall on a piece of paper. Mark the longest toe. Measure the distance in centimeters. This is your "Foot Length". Use this as the CM input for the most accurate conversion.
Are EU sizes unisex?
Typically, yes. EU sizes are often standardized (Paris Point). However, the width of the shoe (last) might differ between men's and women's models, even if the length is the same. Always check the specific brand's chart if unsure.
Regional Differences
- United States (US): Often uses arbitrary numbers like 7, 8, 9.5.
- United Kingdom (UK): Traditionally smaller than US. Uses integers and half sizes.
- Europe (EU): Often measured in "Paris Points". Typically uses increments of 2/3 or 1/3 CM.
- Japan: Similar to US, but often slightly tighter. (Not included in this calculator).