| Dormagen to Novi di Modena | 468.39 mi (753.80 km) |
| Dormagen to Novi Ligure | 447.44 mi (720.09 km) |
| Dormagen to Nuoro | 754.76 mi (1,214.67 km) |
| Dormagen to Occhiobello | 480.10 mi (772.65 km) |
| Dormagen to Oderzo | 450.00 mi (724.20 km) |
| Dormagen to Oggiono | 385.20 mi (619.92 km) |
| Dormagen to Olbia | 715.15 mi (1,150.93 km) |
| Dormagen to Oleggio | 389.03 mi (626.08 km) |
| Dormagen to Olgiate Comasco | 380.29 mi (612.02 km) |
| Dormagen to Olgiate Olona | 389.40 mi (626.68 km) |
| Dormagen to Omegna | 368.05 mi (592.32 km) |
| Dormagen to Opera | 410.07 mi (659.95 km) |
| Dormagen to Oppeano | 448.17 mi (721.26 km) |
| Dormagen to Orbassano | 422.27 mi (679.58 km) |
| Dormagen to Orbetello | 633.22 mi (1,019.07 km) |
