| Cercola to Oerlinghausen | 812.68 mi (1,307.89 km) |
| Cercola to Oestrich-Winkel | 701.53 mi (1,129.00 km) |
| Cercola to Offenburg | 612.00 mi (984.91 km) |
| Cercola to Oftersheim | 650.86 mi (1,047.46 km) |
| Cercola to Ohrdruf | 709.71 mi (1,142.17 km) |
| Cercola to Ohringen | 622.24 mi (1,001.40 km) |
| Cercola to Olbernhau | 678.87 mi (1,092.53 km) |
| Cercola to Olching | 528.13 mi (849.95 km) |
| Cercola to Oldenburg | 895.37 mi (1,440.95 km) |
| Cercola to Oldenburg in Holstein | 941.81 mi (1,515.70 km) |
| Cercola to Olfen | 819.23 mi (1,318.42 km) |
| Cercola to Olpe | 767.28 mi (1,234.82 km) |
| Cercola to Olsberg | 776.31 mi (1,249.34 km) |
| Cercola to Oranienburg | 823.02 mi (1,324.52 km) |
| Cercola to Ortenberg | 703.35 mi (1,131.93 km) |
