| Zimnicea to Oerlinghausen | 960.93 mi (1,546.48 km) |
| Zimnicea to Oestrich-Winkel | 927.75 mi (1,493.08 km) |
| Zimnicea to Offenburg | 897.14 mi (1,443.80 km) |
| Zimnicea to Oftersheim | 887.87 mi (1,428.89 km) |
| Zimnicea to Ohrdruf | 844.39 mi (1,358.91 km) |
| Zimnicea to Ohringen | 845.11 mi (1,360.07 km) |
| Zimnicea to Olbernhau | 743.07 mi (1,195.85 km) |
| Zimnicea to Olching | 743.37 mi (1,196.34 km) |
| Zimnicea to Oldenburg | 1,019.79 mi (1,641.19 km) |
| Zimnicea to Oldenburg in Holstein | 982.49 mi (1,581.16 km) |
| Zimnicea to Olfen | 1,000.91 mi (1,610.80 km) |
| Zimnicea to Olpe | 962.30 mi (1,548.68 km) |
| Zimnicea to Olsberg | 947.28 mi (1,524.49 km) |
| Zimnicea to Oranienburg | 838.94 mi (1,350.15 km) |
| Zimnicea to Ortenberg | 894.53 mi (1,439.60 km) |
