| Romulus to Noventa Vicentina | 4,445.42 mi (7,154.21 km) |
| Romulus to Novi di Modena | 4,435.59 mi (7,138.39 km) |
| Romulus to Novi Ligure | 4,355.27 mi (7,009.13 km) |
| Romulus to Nuoro | 4,553.73 mi (7,328.53 km) |
| Romulus to Occhiobello | 4,461.72 mi (7,180.44 km) |
| Romulus to Oderzo | 4,463.54 mi (7,183.38 km) |
| Romulus to Oggiono | 4,338.71 mi (6,982.48 km) |
| Romulus to Olbia | 4,536.57 mi (7,300.91 km) |
| Romulus to Oleggio | 4,316.90 mi (6,947.38 km) |
| Romulus to Olgiate Comasco | 4,323.33 mi (6,957.74 km) |
| Romulus to Olgiate Olona | 4,325.71 mi (6,961.55 km) |
| Romulus to Omegna | 4,297.22 mi (6,915.71 km) |
| Romulus to Opera | 4,348.72 mi (6,998.59 km) |
| Romulus to Oppeano | 4,430.82 mi (7,130.71 km) |
| Romulus to Orbassano | 4,294.84 mi (6,911.87 km) |
