| Clervaux to Navodari | 1,126.43 mi (1,812.82 km) |
| Clervaux to Negresti-Oas | 801.28 mi (1,289.54 km) |
| Clervaux to Nehoiu | 993.21 mi (1,598.41 km) |
| Clervaux to Ocna Mures | 856.33 mi (1,378.13 km) |
| Clervaux to Odobesti | 1,014.20 mi (1,632.20 km) |
| Clervaux to Odorheiu Secuiesc | 921.49 mi (1,483.00 km) |
| Clervaux to Oltenita | 1,049.14 mi (1,688.42 km) |
| Clervaux to Onesti | 987.45 mi (1,589.14 km) |
| Clervaux to Oradea | 753.44 mi (1,212.54 km) |
| Clervaux to Orastie | 843.44 mi (1,357.39 km) |
| Clervaux to Oravita | 805.81 mi (1,296.83 km) |
| Clervaux to Orsova | 846.85 mi (1,362.87 km) |
| Clervaux to Otelu Rosu | 817.63 mi (1,315.85 km) |
| Clervaux to Otopeni | 1,008.92 mi (1,623.70 km) |
| Clervaux to Ovidiu | 1,125.81 mi (1,811.82 km) |
