EU to US Shoe Size — Nike Chart
Convert with explicit units, definitions and assumptions.
Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Brand-specific lookup, not a universal EU/US formula. Chart checked 7 October 2026. Fit, width and other brands may differ.
Example Calculation
- EU size: 42
- US scale: Men
In the referenced Nike chart, EU 42 corresponds to US men’s 8.5.
Method references
Frequently asked questions
How do I use this calculator?
Enter eu size, us scale. The result updates automatically. Use Reset to restore the example values.
What method does it use?
Look up the matching EU column in the Nike adult footwear size chart.. Brand-specific lookup, not a universal EU/US formula. Chart checked 7 October 2026. Fit, width and other brands may differ.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.