| Otelu Rosu to Nasaud | 156.33 mi (251.59 km) |
| Otelu Rosu to Navodari | 317.18 mi (510.45 km) |
| Otelu Rosu to Negresti-Oas | 170.17 mi (273.86 km) |
| Otelu Rosu to Nehoiu | 191.94 mi (308.89 km) |
| Otelu Rosu to Ocna Mures | 94.16 mi (151.54 km) |
| Otelu Rosu to Odobesti | 228.32 mi (367.44 km) |
| Otelu Rosu to Odorheiu Secuiesc | 152.02 mi (244.65 km) |
| Otelu Rosu to Oltenita | 232.11 mi (373.55 km) |
| Otelu Rosu to Onesti | 218.43 mi (351.53 km) |
| Otelu Rosu to Oradea | 109.30 mi (175.91 km) |
| Otelu Rosu to Orastie | 46.87 mi (75.43 km) |
| Otelu Rosu to Oravita | 46.32 mi (74.54 km) |
| Otelu Rosu to Orsova | 54.85 mi (88.28 km) |
| Otelu Rosu to Otopeni | 193.42 mi (311.28 km) |
| Otelu Rosu to Ovidiu | 315.74 mi (508.13 km) |
