| Enfield Lock to Noventa Vicentina | 687.78 mi (1,106.87 km) |
| Enfield Lock to Novi di Modena | 685.37 mi (1,103.00 km) |
| Enfield Lock to Novi Ligure | 625.59 mi (1,006.78 km) |
| Enfield Lock to Nuoro | 902.23 mi (1,451.99 km) |
| Enfield Lock to Occhiobello | 707.02 mi (1,137.84 km) |
| Enfield Lock to Oderzo | 699.24 mi (1,125.32 km) |
| Enfield Lock to Oggiono | 589.03 mi (947.95 km) |
| Enfield Lock to Olbia | 869.40 mi (1,399.16 km) |
| Enfield Lock to Oleggio | 575.56 mi (926.27 km) |
| Enfield Lock to Olgiate Comasco | 576.57 mi (927.89 km) |
| Enfield Lock to Olgiate Olona | 581.67 mi (936.11 km) |
| Enfield Lock to Omegna | 553.85 mi (891.34 km) |
| Enfield Lock to Opera | 605.30 mi (974.13 km) |
| Enfield Lock to Oppeano | 674.81 mi (1,086.00 km) |
| Enfield Lock to Orbassano | 575.97 mi (926.93 km) |
