| Sinzig to Oerlinghausen | 115.70 mi (186.20 km) |
| Sinzig to Oestrich-Winkel | 50.11 mi (80.64 km) |
| Sinzig to Offenburg | 146.83 mi (236.31 km) |
| Sinzig to Oftersheim | 100.48 mi (161.71 km) |
| Sinzig to Ohrdruf | 153.61 mi (247.21 km) |
| Sinzig to Ohringen | 136.60 mi (219.83 km) |
| Sinzig to Olbernhau | 266.73 mi (429.25 km) |
| Sinzig to Olching | 244.27 mi (393.12 km) |
| Sinzig to Oldenburg | 184.18 mi (296.40 km) |
| Sinzig to Oldenburg in Holstein | 301.09 mi (484.56 km) |
| Sinzig to Olfen | 81.14 mi (130.58 km) |
| Sinzig to Olpe | 41.30 mi (66.47 km) |
| Sinzig to Olsberg | 77.23 mi (124.29 km) |
| Sinzig to Oranienburg | 298.40 mi (480.23 km) |
| Sinzig to Ortenberg | 80.41 mi (129.41 km) |
