| Targu Ocna to Noventa Vicentina | 729.10 mi (1,173.37 km) |
| Targu Ocna to Novi di Modena | 764.80 mi (1,230.82 km) |
| Targu Ocna to Novi Ligure | 867.88 mi (1,396.73 km) |
| Targu Ocna to Nuoro | 959.27 mi (1,543.79 km) |
| Targu Ocna to Occhiobello | 731.90 mi (1,177.88 km) |
| Targu Ocna to Oderzo | 677.66 mi (1,090.58 km) |
| Targu Ocna to Oggiono | 827.49 mi (1,331.72 km) |
| Targu Ocna to Olbia | 930.88 mi (1,498.11 km) |
| Targu Ocna to Oleggio | 863.65 mi (1,389.91 km) |
| Targu Ocna to Olgiate Comasco | 845.75 mi (1,361.10 km) |
| Targu Ocna to Olgiate Olona | 851.35 mi (1,370.12 km) |
| Targu Ocna to Omegna | 871.43 mi (1,402.43 km) |
| Targu Ocna to Opera | 838.42 mi (1,349.31 km) |
| Targu Ocna to Oppeano | 745.59 mi (1,199.92 km) |
| Targu Ocna to Orbassano | 923.73 mi (1,486.59 km) |
