| Gouveia to Navodari | 1,850.83 mi (2,978.63 km) |
| Gouveia to Negresti-Oas | 1,606.63 mi (2,585.62 km) |
| Gouveia to Nehoiu | 1,734.38 mi (2,791.22 km) |
| Gouveia to Ocna Mures | 1,618.09 mi (2,604.06 km) |
| Gouveia to Odobesti | 1,770.82 mi (2,849.86 km) |
| Gouveia to Odorheiu Secuiesc | 1,686.55 mi (2,714.24 km) |
| Gouveia to Oltenita | 1,754.39 mi (2,823.43 km) |
| Gouveia to Onesti | 1,756.52 mi (2,826.85 km) |
| Gouveia to Oradea | 1,530.50 mi (2,463.10 km) |
| Gouveia to Orastie | 1,584.72 mi (2,550.35 km) |
| Gouveia to Oravita | 1,509.37 mi (2,429.10 km) |
| Gouveia to Orsova | 1,543.81 mi (2,484.52 km) |
| Gouveia to Otelu Rosu | 1,542.92 mi (2,483.10 km) |
| Gouveia to Otopeni | 1,724.62 mi (2,775.51 km) |
| Gouveia to Ovidiu | 1,848.49 mi (2,974.86 km) |
