| Heswall to Noventa Vicentina | 859.37 mi (1,383.02 km) |
| Heswall to Novi di Modena | 857.79 mi (1,380.48 km) |
| Heswall to Novi Ligure | 798.09 mi (1,284.40 km) |
| Heswall to Nuoro | 1,070.69 mi (1,723.11 km) |
| Heswall to Occhiobello | 878.99 mi (1,414.59 km) |
| Heswall to Oderzo | 868.89 mi (1,398.34 km) |
| Heswall to Oggiono | 761.62 mi (1,225.71 km) |
| Heswall to Olbia | 1,038.89 mi (1,671.93 km) |
| Heswall to Oleggio | 748.31 mi (1,204.28 km) |
| Heswall to Olgiate Comasco | 749.28 mi (1,205.84 km) |
| Heswall to Olgiate Olona | 754.42 mi (1,214.12 km) |
| Heswall to Omegna | 726.61 mi (1,169.36 km) |
| Heswall to Opera | 778.04 mi (1,252.14 km) |
| Heswall to Oppeano | 846.68 mi (1,362.60 km) |
| Heswall to Orbassano | 747.64 mi (1,203.22 km) |
