How it works
A walkthrough, end to end.
- 1
Pick gender (men's, women's, or unisex foot length).
- 2
Enter a size in any system.
- 3
See equivalents in US, UK, EU, and JP, plus foot length in mm.
Reference
Shoe size
Approximations: US Men ≈ UK + 1. EU ≈ (US + 33) for men, +31 for women. JP = mm.
Use cases
What you can do with this.
International ordering
Buy from a UK or European retailer.
Gift sizing
Translate the recipient's UK size to US.
Outlet shopping
Translate EU labels at sample sales.
Athletic shoes
Brands often size differently — pair with foot-length mm.
Kids' growth
Track foot length as kids grow.
FAQ
Frequently asked.
Within ±0.5 size due to brand variation. For best fit, measure foot length in mm.
Supported. EU rarely has half sizes; rounded down by convention.
No. All conversion runs in your browser.
This calculator handles length only. Width letters (B, D, EE) are brand-specific.