| Ruppichteroth to Oerlinghausen | 92.63 mi (149.07 km) |
| Ruppichteroth to Oestrich-Winkel | 62.62 mi (100.78 km) |
| Ruppichteroth to Offenburg | 165.57 mi (266.45 km) |
| Ruppichteroth to Oftersheim | 112.90 mi (181.70 km) |
| Ruppichteroth to Ohrdruf | 141.57 mi (227.84 km) |
| Ruppichteroth to Ohringen | 144.57 mi (232.66 km) |
| Ruppichteroth to Olbernhau | 255.73 mi (411.55 km) |
| Ruppichteroth to Olching | 250.73 mi (403.52 km) |
| Ruppichteroth to Oldenburg | 161.77 mi (260.34 km) |
| Ruppichteroth to Oldenburg in Holstein | 277.94 mi (447.30 km) |
| Ruppichteroth to Olfen | 60.36 mi (97.14 km) |
| Ruppichteroth to Olpe | 19.12 mi (30.78 km) |
| Ruppichteroth to Olsberg | 55.49 mi (89.30 km) |
| Ruppichteroth to Oranienburg | 278.69 mi (448.50 km) |
| Ruppichteroth to Ortenberg | 76.61 mi (123.29 km) |
