| Bergisch Gladbach to Navodari | 1,095.64 mi (1,763.26 km) |
| Bergisch Gladbach to Negresti-Oas | 761.49 mi (1,225.51 km) |
| Bergisch Gladbach to Nehoiu | 961.96 mi (1,548.12 km) |
| Bergisch Gladbach to Ocna Mures | 824.29 mi (1,326.57 km) |
| Bergisch Gladbach to Odobesti | 979.74 mi (1,576.73 km) |
| Bergisch Gladbach to Odorheiu Secuiesc | 887.29 mi (1,427.96 km) |
| Bergisch Gladbach to Oltenita | 1,022.99 mi (1,646.34 km) |
| Bergisch Gladbach to Onesti | 951.16 mi (1,530.74 km) |
| Bergisch Gladbach to Oradea | 721.10 mi (1,160.49 km) |
| Bergisch Gladbach to Orastie | 815.74 mi (1,312.80 km) |
| Bergisch Gladbach to Oravita | 786.36 mi (1,265.52 km) |
| Bergisch Gladbach to Orsova | 827.26 mi (1,331.34 km) |
| Bergisch Gladbach to Otelu Rosu | 793.74 mi (1,277.40 km) |
| Bergisch Gladbach to Otopeni | 981.83 mi (1,580.10 km) |
| Bergisch Gladbach to Ovidiu | 1,095.32 mi (1,762.74 km) |
