| Hohr-Grenzhausen to Navodari | 1,062.34 mi (1,709.67 km) |
| Hohr-Grenzhausen to Negresti-Oas | 732.09 mi (1,178.19 km) |
| Hohr-Grenzhausen to Nehoiu | 928.76 mi (1,494.70 km) |
| Hohr-Grenzhausen to Ocna Mures | 791.32 mi (1,273.50 km) |
| Hohr-Grenzhausen to Odobesti | 947.96 mi (1,525.60 km) |
| Hohr-Grenzhausen to Odorheiu Secuiesc | 855.33 mi (1,376.52 km) |
| Hohr-Grenzhausen to Oltenita | 987.78 mi (1,589.68 km) |
| Hohr-Grenzhausen to Onesti | 920.21 mi (1,480.93 km) |
| Hohr-Grenzhausen to Oradea | 688.14 mi (1,107.45 km) |
| Hohr-Grenzhausen to Orastie | 780.97 mi (1,256.84 km) |
| Hohr-Grenzhausen to Oravita | 748.59 mi (1,204.73 km) |
| Hohr-Grenzhausen to Orsova | 789.57 mi (1,270.70 km) |
| Hohr-Grenzhausen to Otelu Rosu | 757.50 mi (1,219.08 km) |
| Hohr-Grenzhausen to Otopeni | 946.96 mi (1,523.98 km) |
| Hohr-Grenzhausen to Ovidiu | 1,061.89 mi (1,708.95 km) |
