| Montabaur to Novi di Modena | 408.82 mi (657.93 km) |
| Montabaur to Novi Ligure | 394.86 mi (635.47 km) |
| Montabaur to Nuoro | 703.06 mi (1,131.46 km) |
| Montabaur to Occhiobello | 419.11 mi (674.49 km) |
| Montabaur to Oderzo | 386.97 mi (622.77 km) |
| Montabaur to Oggiono | 329.15 mi (529.72 km) |
| Montabaur to Olbia | 662.72 mi (1,066.55 km) |
| Montabaur to Oleggio | 336.31 mi (541.24 km) |
| Montabaur to Olgiate Comasco | 325.84 mi (524.39 km) |
| Montabaur to Olgiate Olona | 335.50 mi (539.94 km) |
| Montabaur to Omegna | 316.16 mi (508.81 km) |
| Montabaur to Opera | 355.08 mi (571.45 km) |
| Montabaur to Oppeano | 387.48 mi (623.59 km) |
| Montabaur to Orbassano | 375.43 mi (604.20 km) |
| Montabaur to Orbetello | 575.50 mi (926.18 km) |
