EU to US Shoe Size Converter
Convert EU shoe size to US.
Approximate shoe size conversion.
How the Math Works
The EU to US shoe size conversion uses a standardized mathematical relationship between European and American sizing systems. For men, the formula subtracts 33.5 from the EU size to get US men's size, while women's formulas subtract 31.5 from EU to get US women's size. This linear conversion reflects the different sizing scales used in each region, where European sizes typically represent the foot length in millimeters and US sizes use a different increment system based on historical barleycorn measurements.
Practical Applications
To use this converter practically, first determine whether you need the men's or women's conversion formula based on the shoe style. Take your EU shoe size and apply the appropriate subtraction: EU men's size minus 33.5 equals US men's size, or EU women's size minus 31.5 equals US women's size. For example, a EU size 42 men's shoe converts to US size 8.5 (42 - 33.5 = 8.5), while a EU size 37 women's shoe converts to US size 5.5 (37 - 31.5 = 5.5).
Day-to-Day Use
This converter eliminates the guesswork when shopping online from international retailers who list only European sizes, helping you avoid costly returns and size mix-ups. Whether you're buying shoes as a gift for someone in another country, traveling abroad, or shopping on European e-commerce sites, you can quickly determine your true US size. This saves time, prevents the frustration of ill-fitting shoes, and ensures you can confidently order footwear regardless of which sizing system the brand uses.
FAQ
Exact?
Sizes vary between brands.