| Westervoort to Octeville | 369.32 mi (594.37 km) |
| Westervoort to Oignies | 165.09 mi (265.68 km) |
| Westervoort to Oissel | 280.07 mi (450.73 km) |
| Westervoort to Olivet | 336.16 mi (541.00 km) |
| Westervoort to Ollioules | 609.93 mi (981.59 km) |
| Westervoort to Olonne-sur-Mer | 511.92 mi (823.85 km) |
| Westervoort to Oloron-Sainte-Marie | 678.49 mi (1,091.92 km) |
| Westervoort to Onet Village | 547.55 mi (881.20 km) |
| Westervoort to Onnaing | 149.74 mi (240.99 km) |
| Westervoort to Orange | 543.50 mi (874.68 km) |
| Westervoort to Orchies | 156.53 mi (251.91 km) |
| Westervoort to Orleans | 333.67 mi (537.00 km) |
| Westervoort to Orly | 272.70 mi (438.87 km) |
| Westervoort to Ormesson-sur-Marne | 266.62 mi (429.09 km) |
| Westervoort to Orsay | 280.60 mi (451.59 km) |
