| Herk-de-Stad to Novi di Modena | 494.71 mi (796.15 km) |
| Herk-de-Stad to Novi Ligure | 458.72 mi (738.24 km) |
| Herk-de-Stad to Nuoro | 760.82 mi (1,224.42 km) |
| Herk-de-Stad to Occhiobello | 510.58 mi (821.69 km) |
| Herk-de-Stad to Oderzo | 489.64 mi (788.00 km) |
| Herk-de-Stad to Oggiono | 404.62 mi (651.17 km) |
| Herk-de-Stad to Olbia | 722.88 mi (1,163.36 km) |
| Herk-de-Stad to Oleggio | 401.84 mi (646.71 km) |
| Herk-de-Stad to Olgiate Comasco | 396.60 mi (638.27 km) |
| Herk-de-Stad to Olgiate Olona | 404.41 mi (650.84 km) |
| Herk-de-Stad to Omegna | 379.94 mi (611.46 km) |
| Herk-de-Stad to Opera | 426.76 mi (686.81 km) |
| Herk-de-Stad to Oppeano | 478.07 mi (769.39 km) |
| Herk-de-Stad to Orbassano | 424.29 mi (682.83 km) |
| Herk-de-Stad to Orbetello | 652.99 mi (1,050.89 km) |
