| Hiddenhausen to Novi di Modena | 513.22 mi (825.95 km) |
| Hiddenhausen to Novi Ligure | 511.87 mi (823.77 km) |
| Hiddenhausen to Nuoro | 819.46 mi (1,318.79 km) |
| Hiddenhausen to Occhiobello | 518.51 mi (834.47 km) |
| Hiddenhausen to Oderzo | 474.78 mi (764.08 km) |
| Hiddenhausen to Oggiono | 442.30 mi (711.81 km) |
| Hiddenhausen to Olbia | 778.42 mi (1,252.74 km) |
| Hiddenhausen to Oleggio | 453.72 mi (730.18 km) |
| Hiddenhausen to Olgiate Comasco | 441.33 mi (710.26 km) |
| Hiddenhausen to Olgiate Olona | 451.58 mi (726.74 km) |
| Hiddenhausen to Omegna | 434.60 mi (699.43 km) |
| Hiddenhausen to Opera | 469.48 mi (755.55 km) |
| Hiddenhausen to Oppeano | 488.56 mi (786.27 km) |
| Hiddenhausen to Orbassano | 497.11 mi (800.02 km) |
| Hiddenhausen to Orbetello | 682.89 mi (1,099.00 km) |
