Shoe Size Glossary
Shoe sizing terms are easier when you separate length, width, last shape and fit offset. This glossary keeps those concepts distinct.
Brannock: measuring and fitting instructions · 2026-09-05
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.
Size labels and measured foot length are different quantities. A chart does not establish the fit of every model.
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.