Shoe Size Converter
Free shoe size converter: convert between US, UK, EU, JP shoe sizes and foot length in centimeters and inches. Perfec...

What Shoe Size Converter does
Shoe Size Converter is a free online utility that instantly translates foot measurements across US, UK, EU, and Japanese sizing standards, displaying both numeric sizes and foot length in centimeters and inches. Users input a known size or foot length, and the tool returns the corresponding measurements in other systems, streamlining international shoe shopping. The interface presents a clickable size chart organized by gender and age group (men, women, kids), allowing side-by-side comparison of all supported sizing systems at a glance. A footnote reminds visitors that sizes are approximate and may vary by brand, noting that Nike, Adidas, and other manufacturers can differ by 0.5–1 size from standard charts. The site emphasizes using foot length in centimeters as the primary reference for the most accurate results.
How to use the SmartCalc Shoe Size Converter
- 1
Select the known size system (US, UK, EU, JP) or foot length in centimeters or inches
- 2
Choose the target size system you want to convert to
- 3
View the converted size and corresponding foot length displayed in the results
- 4
Refer to the interactive size chart for a visual comparison of all standards
Best for
International online shoppers who need to translate their foot measurements into foreign sizing systems and want a quick visual reference for how different standards compare.
Limitations
- Shoe sizes are approximate and may vary by brand
- Conversions rely on standard formulas that may not match every manufacturer's last
- Results are estimates and should be verified against specific brand charts
Shoe Size Converter FAQ
- Why do shoe sizes vary between countries?
- Each region developed its own sizing system based on different measurement units; US sizes use inches, EU uses centimeters (Paris point = 2/3 cm), and UK sizes differ from US even though both use inches.
- Are men's and women's shoe sizes the same?
- No, men's and women's sizing differs significantly; for example, a US men's size 8 is approximately a US women's size 9.5, and this converter handles gender-specific conversions.
- How accurate is this shoe size converter?
- This converter uses standard conversion formulas that work for most brands, but sizes are approximate and may vary by manufacturer, so results should be treated as estimates.
- Can I use foot length in centimeters as a reference?
- For best results, measure your foot length in centimeters and use that as your primary reference, as shoe sizes are approximate and may vary by brand.