| Catanzaro to Oerlinghausen | 979.94 mi (1,577.07 km) |
| Catanzaro to Oestrich-Winkel | 875.08 mi (1,408.30 km) |
| Catanzaro to Offenburg | 789.07 mi (1,269.89 km) |
| Catanzaro to Oftersheim | 824.35 mi (1,326.66 km) |
| Catanzaro to Ohrdruf | 872.10 mi (1,403.51 km) |
| Catanzaro to Ohringen | 793.36 mi (1,276.79 km) |
| Catanzaro to Olbernhau | 828.42 mi (1,333.21 km) |
| Catanzaro to Olching | 694.48 mi (1,117.65 km) |
| Catanzaro to Oldenburg | 1,061.49 mi (1,708.30 km) |
| Catanzaro to Oldenburg in Holstein | 1,097.20 mi (1,765.78 km) |
| Catanzaro to Olfen | 990.53 mi (1,594.10 km) |
| Catanzaro to Olpe | 938.97 mi (1,511.13 km) |
| Catanzaro to Olsberg | 945.47 mi (1,521.59 km) |
| Catanzaro to Oranienburg | 970.57 mi (1,561.98 km) |
| Catanzaro to Ortenberg | 873.06 mi (1,405.06 km) |
