Shoe Size Converter
Convert shoe sizes between US, UK, EU and cm.
How to use
- 1 Enter the shoe size you already know.
- 2 Choose which system that size is in (US, UK, EU or cm).
- 3 Select men’s or women’s sizing.
- 4 Read the equivalent sizes and the foot length in centimetres.
About Shoe Size Converter
The Shoe Size Converter translates a single shoe size into its equivalents across the US, UK and EU scales, plus the underlying foot length in centimetres.
Pick the system you already know — say a US size from an American store — choose men’s or women’s sizing, and the tool fills in the rest so you can shop confidently across regions.
Because every regional scale is ultimately based on foot length, the converter anchors each conversion to that length and then applies the conventional relationships between the systems: the half-size gap between US and UK men’s sizes, the larger offset used for women’s sizing, and the Paris-point spacing of the EU scale.
Returning the foot length in centimetres is especially useful, since it is the most reliable number to compare against any individual brand’s size chart.
A word of caution that no converter can fix: real-world sizing drifts between manufacturers and even between models from the same maker, so these figures are a well-grounded starting point rather than a guarantee of fit.
When a size falls between two options, sizing up is usually the safer bet.
Everything runs locally in your browser with no network calls, so your measurements stay private and the tool keeps working offline once loaded.
FAQ
Why do sizes differ slightly from a brand’s own chart?
Sizing is not fully standardised. Each brand sets its own lasts, so use the centimetre foot length to compare against the maker’s specific chart for the best fit.
Should I size up or down when between sizes?
Sizing up is usually safer, since a slightly roomy shoe is more comfortable than a tight one. Insoles can take up a little extra space if needed.