| Trebbin to Novi di Modena | 516.73 mi (831.59 km) |
| Trebbin to Novi Ligure | 553.24 mi (890.35 km) |
| Trebbin to Nuoro | 842.38 mi (1,355.68 km) |
| Trebbin to Occhiobello | 509.41 mi (819.82 km) |
| Trebbin to Oderzo | 445.83 mi (717.49 km) |
| Trebbin to Oggiono | 477.36 mi (768.24 km) |
| Trebbin to Olbia | 800.02 mi (1,287.50 km) |
| Trebbin to Oleggio | 501.76 mi (807.51 km) |
| Trebbin to Olgiate Comasco | 483.95 mi (778.84 km) |
| Trebbin to Olgiate Olona | 495.06 mi (796.73 km) |
| Trebbin to Omegna | 488.53 mi (786.22 km) |
| Trebbin to Opera | 505.55 mi (813.61 km) |
| Trebbin to Oppeano | 486.59 mi (783.10 km) |
| Trebbin to Orbassano | 560.88 mi (902.65 km) |
| Trebbin to Orbetello | 681.86 mi (1,097.34 km) |
