US Men's Size 100
A US men's shoe size 100 is approximately UK 99 and EU 133.
100
US
99
UK
133
EU
How This Works
This uses standard offset approximations between US, UK and EU shoe sizing scales. Actual sizing can vary slightly by brand and shoe last (the mold a shoe is built on) — when possible, check the specific brand's size chart for the most accurate fit.
Reference Table
US 7 = UK 6 = EU 40
US 8 = UK 7 = EU 41
US 9 = UK 8 = EU 42
US 10 = UK 9 = EU 43
US 11 = UK 10 = EU 44
US 12 = UK 11 = EU 45
Frequently Asked Questions
What is US men's size 100 in EU?
Approximately EU 133.
Is this conversion exact?
It's a standard approximation. Actual fit varies by brand and shoe last, so check the specific brand's size chart when precision matters.