| Ostwald to Octeville | 429.55 mi (691.30 km) |
| Ostwald to Oignies | 249.73 mi (401.91 km) |
| Ostwald to Oissel | 305.32 mi (491.37 km) |
| Ostwald to Olivet | 271.77 mi (437.38 km) |
| Ostwald to Ollioules | 384.52 mi (618.83 km) |
| Ostwald to Olonne-sur-Mer | 463.47 mi (745.88 km) |
| Ostwald to Oloron-Sainte-Marie | 544.58 mi (876.42 km) |
| Ostwald to Onet Village | 378.00 mi (608.33 km) |
| Ostwald to Onnaing | 224.12 mi (360.68 km) |
| Ostwald to Orange | 334.82 mi (538.83 km) |
| Ostwald to Orchies | 240.49 mi (387.03 km) |
| Ostwald to Orleans | 270.84 mi (435.88 km) |
| Ostwald to Orly | 243.21 mi (391.40 km) |
| Ostwald to Ormesson-sur-Marne | 236.66 mi (380.87 km) |
| Ostwald to Orsay | 252.53 mi (406.40 km) |
