US to EU Wetsuit Size Conversion
| US Chest (in) | EU Size |
|---|---|
| XS (34-36) | 44-46 |
| S (36-38) | 46-48 |
| M (38-40) | 48-50 |
| L (40-42) | 50-52 |
| XL (42-44) | 52-54 |
Sizing conventions vary by brand and by cut — this table shows the standard published conversion. Always check the garment's own size chart when one is available. See how these tables are compiled.
A US chest 38-40in wetsuit converts to a EU 48-50 on the standard chart, though wetsuit sizing depends on height as well as chest size since the suit needs to seal at wrist, ankle, and neck without excess material bunching.
Because a loose wetsuit lets in water and reduces insulation while a too-tight one restricts paddling and breathing, checking the brand's full height-and-chest sizing matrix (not just this chest-based conversion) is worth the extra step before an international online order.
Frequently asked questions
Is chest measurement enough to convert wetsuit size accurately?
Not entirely — height matters as much as chest size for a wetsuit's seal at the wrists, ankles, and neck, so check the brand's full sizing matrix rather than relying on chest alone.