| Rorschach to Octeville | 530.52 mi (853.79 km) |
| Rorschach to Oignies | 360.53 mi (580.21 km) |
| Rorschach to Oissel | 406.61 mi (654.38 km) |
| Rorschach to Olivet | 354.53 mi (570.56 km) |
| Rorschach to Ollioules | 347.63 mi (559.45 km) |
| Rorschach to Olonne-sur-Mer | 534.57 mi (860.31 km) |
| Rorschach to Oloron-Sainte-Marie | 572.17 mi (920.81 km) |
| Rorschach to Onet Village | 394.89 mi (635.52 km) |
| Rorschach to Onnaing | 335.26 mi (539.56 km) |
| Rorschach to Orange | 322.26 mi (518.63 km) |
| Rorschach to Orchies | 351.52 mi (565.71 km) |
| Rorschach to Orleans | 354.23 mi (570.07 km) |
| Rorschach to Orly | 339.44 mi (546.27 km) |
| Rorschach to Ormesson-sur-Marne | 333.62 mi (536.90 km) |
| Rorschach to Orsay | 347.94 mi (559.95 km) |
