| Trofa to Orbetello | 1,017.54 mi (1,637.57 km) |
| Trofa to Oria | 1,363.55 mi (2,194.42 km) |
| Trofa to Oristano | 903.40 mi (1,453.88 km) |
| Trofa to Orta Nova | 1,255.04 mi (2,019.79 km) |
| Trofa to Orte | 1,077.24 mi (1,733.65 km) |
| Trofa to Ortona | 1,180.26 mi (1,899.44 km) |
| Trofa to Orvieto | 1,062.47 mi (1,709.88 km) |
| Trofa to Orzinuovi | 967.82 mi (1,557.56 km) |
| Trofa to Osimo | 1,130.85 mi (1,819.92 km) |
| Trofa to Ospitaletto | 976.45 mi (1,571.44 km) |
| Trofa to Ostuni | 1,357.97 mi (2,185.44 km) |
| Trofa to Ottaviano | 1,196.51 mi (1,925.60 km) |
| Trofa to Ovada | 897.14 mi (1,443.81 km) |
| Trofa to Ozieri | 916.27 mi (1,474.59 km) |
| Trofa to Paceco | 1,143.47 mi (1,840.24 km) |
