Shoe Size Converter
Runs locally in your browser. Nothing leaves your device.Compare shoe sizes between EU, UK, US men, US women, kids, Mondopoint and measured foot length.
Recommendation
Shoe sizes are not fully standardised across countries or brands. Results are general recommendations. Always check the manufacturer’s size chart and measure both feet before buying.
Mapping applies roughly to 265.0-268.4 mm.
Measured foot length, not a manufacturer's CM label or insole length.
All systems
Foot length
Mondopoint
EU and UK
US
Japan
How it works
- 1
Choose the source system and value
Enter a known size or the measured foot length.
- 2
Choose the profile
Choose the adult or child profile for the correct conversion.
- 3
View and copy the recommendation
See the recommended size in all systems and copy the result if needed.
Good to know
The shoe size converter converts directly in your browser between EU/UK, US, Japan, and Mondopoint — starting from either a known size or a measured foot length, separated into adult and child profiles. A measuring guide explains how to correctly determine foot length.
Calculation runs locally in the browser. Important: shoe sizes are not fully standardized worldwide or across brands — the result is a general recommendation. Always check the manufacturer's size chart before buying and measure both feet.
Typical use cases
Convert shoe size for international orders
Convert a known EU, UK, or US size when ordering from a foreign retailer.
Determine size based on measured foot length
Measure the foot length following the guide and enter it directly when no known size is available as a starting point.
Convert children's sizes between systems
Use the child profile to correctly convert children's shoe sizes between EU, UK, US, and Mondopoint, instead of applying the adult scheme.
Tips for better results
Always check the manufacturer's chart too
Since brands, lasts, and foot width can differ even at the same nominal size, the result is a recommendation — the manufacturer's own size chart is more authoritative before buying.
Measure both feet and use the longer one
Feet are rarely exactly the same length — measure both and use the longer value, wearing the socks worn in the shoe.
Features
Four size systems, two profiles
EU/UK, US, Japan, and Mondopoint are each available for adults and children.
Input via size or foot length
Start either from a known size or directly from a measured foot length.
Measuring guide included
A step-by-step guide explains how to correctly measure foot length.
Frequently asked questions
Is the converted size guaranteed to fit?
No. The result is a general recommendation; brands, lasts, and foot width can differ even at the same nominal size. Check the manufacturer's size chart before buying.
How do I correctly measure my foot length?
Place paper against a wall, put your heel against the wall, mark the longest toe, and measure the distance. Measure both feet and use the longer one.
Are my inputs uploaded?
No. Conversion runs entirely locally in the browser.
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