| Waist (inch) | Waist (cm) | FR | IT | D | AUS |
| 30 | 75 | 75 | 44 | 3 | |
| 32 | 80 | 80 | 46 | 4 | 12 |
| 34 | 85 | 85 | 48 | 5 | 14 |
| 36 | 90 | 90 | 50 | 6 | 16 |
| 38 | 95 | 95 | 52 | 7 | 18 |
| 40 | 100 | 100 | 54 | 8 | 20 |
| 42 | 105 | 105 | 56 | 9 | 22 |
| 44 | 110 | 110 | 58 | 10 | 24 |
Elasticated Waist Watershorts |
||
| Waist (inch) | Waist (cm) | FR |
| Extra Small | 29-31 | 72-78 |
| Small | 31-33 | 78-89 |
| Medium | 33-35 | 83-88 |
| Large | 35-37 | 88-93 |
| Extra Large | 37-39 | 93-98 |
| Extra Extra Large | 39-41 | 98-103 |
Fixed Waist Watershorts |
||
| Waist (inch) | Waist (cm) | FR |
| Extra Small | 30 | 75 |
| Small | 32 | 80 |
| Medium | 34 | 85 |
| Large | 36 | 90 |
| Extra Large | 38 | 95 |
| Extra Extra Large | 40 | 100 |