| Gummersbach to Novi di Modena | 451.28 mi (726.27 km) |
| Gummersbach to Novi Ligure | 437.14 mi (703.51 km) |
| Gummersbach to Nuoro | 745.28 mi (1,199.41 km) |
| Gummersbach to Occhiobello | 461.12 mi (742.11 km) |
| Gummersbach to Oderzo | 427.28 mi (687.64 km) |
| Gummersbach to Oggiono | 371.82 mi (598.38 km) |
| Gummersbach to Olbia | 705.06 mi (1,134.68 km) |
| Gummersbach to Oleggio | 378.58 mi (609.26 km) |
| Gummersbach to Olgiate Comasco | 368.36 mi (592.82 km) |
| Gummersbach to Olgiate Olona | 377.96 mi (608.26 km) |
| Gummersbach to Omegna | 358.26 mi (576.56 km) |
| Gummersbach to Opera | 397.67 mi (639.99 km) |
| Gummersbach to Oppeano | 429.63 mi (691.42 km) |
| Gummersbach to Orbassano | 416.36 mi (670.06 km) |
| Gummersbach to Orbetello | 618.17 mi (994.84 km) |
