| Gagnef to Nasaud | 992.88 mi (1,597.89 km) |
| Gagnef to Navodari | 1,255.09 mi (2,019.88 km) |
| Gagnef to Negresti-Oas | 940.13 mi (1,512.99 km) |
| Gagnef to Nehoiu | 1,148.56 mi (1,848.43 km) |
| Gagnef to Ocna Mures | 1,043.84 mi (1,679.90 km) |
| Gagnef to Odobesti | 1,134.56 mi (1,825.89 km) |
| Gagnef to Odorheiu Secuiesc | 1,069.95 mi (1,721.92 km) |
| Gagnef to Oltenita | 1,236.58 mi (1,990.08 km) |
| Gagnef to Onesti | 1,097.71 mi (1,766.59 km) |
| Gagnef to Oradea | 974.11 mi (1,567.68 km) |
| Gagnef to Orastie | 1,071.09 mi (1,723.76 km) |
| Gagnef to Oravita | 1,108.51 mi (1,783.98 km) |
| Gagnef to Orsova | 1,137.17 mi (1,830.10 km) |
| Gagnef to Otelu Rosu | 1,083.29 mi (1,743.39 km) |
| Gagnef to Otopeni | 1,197.34 mi (1,926.93 km) |
