| Ratingen to Octeville | 390.76 mi (628.88 km) |
| Ratingen to Oignies | 177.60 mi (285.83 km) |
| Ratingen to Oissel | 287.71 mi (463.02 km) |
| Ratingen to Olivet | 324.70 mi (522.56 km) |
| Ratingen to Ollioules | 565.79 mi (910.55 km) |
| Ratingen to Olonne-sur-Mer | 510.90 mi (822.21 km) |
| Ratingen to Oloron-Sainte-Marie | 659.52 mi (1,061.40 km) |
| Ratingen to Onet Village | 517.98 mi (833.60 km) |
| Ratingen to Onnaing | 155.23 mi (249.81 km) |
| Ratingen to Orange | 503.78 mi (810.75 km) |
| Ratingen to Orchies | 167.17 mi (269.03 km) |
| Ratingen to Orleans | 322.44 mi (518.92 km) |
| Ratingen to Orly | 265.13 mi (426.69 km) |
| Ratingen to Ormesson-sur-Marne | 258.34 mi (415.76 km) |
| Ratingen to Orsay | 274.13 mi (441.17 km) |
