About Global Size Chart

Q: Are EU and US shoe sizes the same?

No. EU and US use different scales; use foot length in cm or a trusted converter for equivalents.

Quick answer:

Global Size Chart is built and operated by Albor Digital LLC, a Wyoming-based product studio. Independent size conversion tool with no brand affiliation.

Global Size Chart is an independently developed size conversion tool built and operated by Albor Digital LLC, a Wyoming-based product studio.

The platform was created to provide accurate, structured international size conversions using centimeter-based measurement logic. Unlike generic size tables, this tool emphasizes measurable standards and cross-system validation.

Global Size Chart is not affiliated with individual brands. All trademarks belong to their respective owners.

For full methodology details, see our Sizing Methodology & Data Standards page.

Common questions

How should I use this converter?

Pick your region and size, then read the equivalents. When in doubt, measure in centimeters and compare to the brand chart.

Why do sizes differ between countries?

Each region uses its own scale; mapping through foot length (cm) reduces error.

More on About Global Size Chart

See linked guides on this site for measurement tips and regional differences.

Data sources

ISO and regional footwear sizing references (length-based mapping)
Published brand size charts (e.g. Nike, Adidas) for cross-checks—not endorsements
International measurement and apparel sizing studies (public summaries)

Why Sizes May Vary

Shoe and clothing sizes can vary between brands due to manufacturing differences, materials, and regional sizing standards.

Frequently Asked Questions

What is EU 42 in US shoe size?

EU 42 typically converts to US men's size 9 and US women's size 10.5, depending on brand and width. Use any converter on this page when available.

Are EU and US shoe sizes the same?

No. The EU sizing system and US shoe sizing scale use different scales. International shoe size conversion is most reliable when you anchor to foot length in cm.