| Bochum to Navodari | 1,102.22 mi (1,773.85 km) |
| Bochum to Negresti-Oas | 764.56 mi (1,230.44 km) |
| Bochum to Nehoiu | 968.56 mi (1,558.75 km) |
| Bochum to Ocna Mures | 830.85 mi (1,337.13 km) |
| Bochum to Odobesti | 984.83 mi (1,584.93 km) |
| Bochum to Odorheiu Secuiesc | 892.70 mi (1,436.66 km) |
| Bochum to Oltenita | 1,031.74 mi (1,660.42 km) |
| Bochum to Onesti | 955.45 mi (1,537.65 km) |
| Bochum to Oradea | 727.83 mi (1,171.33 km) |
| Bochum to Orastie | 824.26 mi (1,326.52 km) |
| Bochum to Oravita | 798.46 mi (1,284.99 km) |
| Bochum to Orsova | 839.19 mi (1,350.54 km) |
| Bochum to Otelu Rosu | 803.97 mi (1,293.86 km) |
| Bochum to Otopeni | 990.25 mi (1,593.65 km) |
| Bochum to Ovidiu | 1,102.03 mi (1,773.55 km) |
