| Grays to Nasaud | 1,115.45 mi (1,795.15 km) |
| Grays to Navodari | 1,389.68 mi (2,236.47 km) |
| Grays to Negresti-Oas | 1,057.44 mi (1,701.79 km) |
| Grays to Nehoiu | 1,256.09 mi (2,021.49 km) |
| Grays to Ocna Mures | 1,118.62 mi (1,800.24 km) |
| Grays to Odobesti | 1,274.94 mi (2,051.82 km) |
| Grays to Odorheiu Secuiesc | 1,182.37 mi (1,902.84 km) |
| Grays to Oltenita | 1,314.66 mi (2,115.74 km) |
| Grays to Onesti | 1,246.76 mi (2,006.46 km) |
| Grays to Oradea | 1,015.42 mi (1,634.17 km) |
| Grays to Orastie | 1,108.10 mi (1,783.32 km) |
| Grays to Oravita | 1,073.14 mi (1,727.06 km) |
| Grays to Orsova | 1,114.19 mi (1,793.11 km) |
| Grays to Otelu Rosu | 1,083.80 mi (1,744.21 km) |
| Grays to Otopeni | 1,274.01 mi (2,050.32 km) |
