| Santa Maria a Vico to Orbetello | 194.60 mi (313.18 km) |
| Santa Maria a Vico to Oria | 168.90 mi (271.81 km) |
| Santa Maria a Vico to Oristano | 319.26 mi (513.80 km) |
| Santa Maria a Vico to Orta Nova | 67.09 mi (107.97 km) |
| Santa Maria a Vico to Orte | 146.31 mi (235.46 km) |
| Santa Maria a Vico to Ortona | 91.08 mi (146.57 km) |
| Santa Maria a Vico to Orvieto | 168.68 mi (271.47 km) |
| Santa Maria a Vico to Orzinuovi | 378.70 mi (609.46 km) |
| Santa Maria a Vico to Osimo | 176.83 mi (284.58 km) |
| Santa Maria a Vico to Ospitaletto | 383.01 mi (616.40 km) |
| Santa Maria a Vico to Ostuni | 163.25 mi (262.72 km) |
| Santa Maria a Vico to Ottaviano | 12.67 mi (20.39 km) |
| Santa Maria a Vico to Ovada | 386.51 mi (622.03 km) |
| Santa Maria a Vico to Ozieri | 288.20 mi (463.82 km) |
| Santa Maria a Vico to Paceco | 234.57 mi (377.50 km) |
