| Conversions | Club | VS Club | Date | |
|---|---|---|---|---|
| 10 | Ireland | Italy | 10-02-2018 | Match details |
| 7 | Wales | Italy | 11-03-2018 | Match details |
| 6 | Italy | Scotland | 17-03-2018 | Match details |
| 6 | Wales | Ireland | 24-02-2018 | Match details |
| 5 | Wales | Scotland | 03-02-2018 | Match details |
| 5 | Italy | England | 04-02-2018 | Match details |
| 4 | France | Scotland | 11-02-2018 | Match details |
| 4 | Ireland | Scotland | 10-03-2018 | Match details |
| 3 | Scotland | England | 24-02-2018 | Match details |
| 3 | France | Italy | 23-02-2018 | Match details |
| 3 | Ireland | England | 17-03-2018 | Match details |
| 1 | England | Wales | 10-02-2018 | Match details |
| 1 | England | France | 10-03-2018 | Match details |
| 1 | France | Wales | 17-03-2018 | Match details |
| 1 | France | Ireland | 03-02-2018 | Match details |
