Brooks vs Converse Shoe Size - Which Runs Smaller?
Brooks runs about 1.5 US sizes large compared to Converse. If you wear Brooks in US 9, start by checking Converse in US 10.5. Both brands use the same foot-length measurement; the difference is in the last shape, not the conversion formula.
Brooks to Converse size chart
| US Men (Brooks) | Brooks -> Converse | Foot length |
|---|---|---|
| 7 | 8.5 | 246mm |
| 8 | 9.5 | 254mm |
| 9 | 10.5 | 262mm |
| 10 | 11.5 | 271mm |
| 11 | 12.5 | 279mm |
Fit verdict
- Brooks: True to size (65% of buyers)
- Converse: Runs small (65% of buyers)
Why the sizes differ
Brooks runs about 1.5 US sizes large compared to Converse, with roughly 11mm between the matched fit records.
Brooks foot length is measured in millimetres, then mapped to US size. The Converse starting size shifts by about 1.5 US sizes because of each brand fit bias, not a different conversion formula.