Shoe Size Glossary
Shoe sizing terms are easier when you separate length, width, last shape and fit offset. This glossary keeps those concepts distinct.
Key takeaways
- Learn width letters, half sizes, last shape, Mondopoint and fit offset before comparing charts.
- Keep foot length in millimetres as the shared reference across US, UK, EU and CM systems.
- Width is its own axis: D, 2E, 4E and 6E are not the same as simply adding length.
- A race shoe, boot, clog and lifestyle sneaker can fit differently even inside the same brand.
How to use this guide
Use this page as a decision aid before opening a brand or model guide. The formula gives the starting point; brand fit decides the final choice.
If you already know the brand, open its size guide and compare the fit verdict, width availability and source confidence before buying.
What is the quick rule for shoe size glossary?
The practical rule is: Learn width letters, half sizes, last shape, Mondopoint and fit offset before comparing charts.