| Cisterniga to Oerlinghausen | 951.04 mi (1,530.54 km) |
| Cisterniga to Oestrich-Winkel | 839.69 mi (1,351.36 km) |
| Cisterniga to Offenburg | 775.12 mi (1,247.44 km) |
| Cisterniga to Oftersheim | 834.53 mi (1,343.05 km) |
| Cisterniga to Ohrdruf | 970.27 mi (1,561.50 km) |
| Cisterniga to Ohringen | 862.44 mi (1,387.96 km) |
| Cisterniga to Olbernhau | 1,060.73 mi (1,707.08 km) |
| Cisterniga to Olching | 902.90 mi (1,453.08 km) |
| Cisterniga to Oldenburg | 995.99 mi (1,602.89 km) |
| Cisterniga to Oldenburg in Holstein | 1,129.17 mi (1,817.22 km) |
| Cisterniga to Olfen | 899.98 mi (1,448.38 km) |
| Cisterniga to Olpe | 880.01 mi (1,416.23 km) |
| Cisterniga to Olsberg | 916.32 mi (1,474.68 km) |
| Cisterniga to Oranienburg | 1,134.53 mi (1,825.84 km) |
| Cisterniga to Ortenberg | 891.62 mi (1,434.92 km) |
