| Conversions | Club | VS Club | Date | |
|---|---|---|---|---|
| 8 | Crusaders | Queensland Reds | 22-05-2021 | Match details |
| 7 | Highlanders | New South Wales | 05-06-2021 | Match details |
| 7 | Hurricanes | New South Wales | 14-05-2021 | Match details |
| 5 | Chiefs | New South Wales | 12-06-2021 | Match details |
| 5 | Blues | Brumbies | 29-05-2021 | Match details |
| 5 | New South Wales | Hurricanes | 14-05-2021 | Match details |
| 4 | Queensland Reds | Crusaders | 22-05-2021 | Match details |
| 3 | Western Force | Crusaders | 04-06-2021 | Match details |
| 3 | Melbourne Rebels | Crusaders | 12-06-2021 | Match details |
| 3 | Brumbies | Crusaders | 15-05-2021 | Match details |
