What This Site Does
Shoe Size Convert provides free, accurate shoe size conversion tools covering all major sizing systems: US, UK, EU, and centimeter (CM) sizing for men, women and kids. We also offer 24 specialist tools covering Nike, Adidas, Chinese, Japanese, and Australian sizing, plus width calculators, boot converters, running shoe sizing, ski boot Mondopoint conversion, shoelace length, sock sizing, insole sizing, heel height, and sandal sizing.
Every tool runs entirely in your browser — no login, no account, no personal data required.
Where Our Data Comes From
Conversion tables are compiled from official size charts published by major retailers and brands, cross-referenced against multiple sources:
- Standard US/UK/EU/CM charts: Zappos official size guide, cross-checked with Size.ly and ConvertWorld
- Nike sizing: Nike official footwear size guide and Solereview fit data
- Adidas sizing: Adidas official size guide (adidas.com) with fractional EU values
- Japanese sizing: JIS sizing and the charts of Japanese brands and retailers (Asics, ABC-MART)
- Australian sizing: Australian retailer charts (AU = UK convention)
- Chinese sizing: EU-style size labels used on Taobao, JD.com and AliExpress
- Ski boot Mondopoint: Salomon, Atomic, and Rossignol official charts
- Width data: Size.ly foot measurement database
Shoe sizes vary between individual brands and models because each manufacturer builds around their own proprietary last. Our charts give the correct standard match — always confirm with a specific brand's guide for critical purchases.
A Note on Accuracy
We treat accuracy seriously. If you find a sizing error in any of our charts, please contact us with the specific size, system, and gender affected and we will review and correct it promptly.
Contact
For corrections, partnership inquiries, or feedback, see our Contact page.