| Rocca Priora to Orbetello | 91.66 mi (147.51 km) |
| Rocca Priora to Oria | 268.25 mi (431.71 km) |
| Rocca Priora to Oristano | 253.83 mi (408.49 km) |
| Rocca Priora to Orta Nova | 155.42 mi (250.12 km) |
| Rocca Priora to Orte | 50.68 mi (81.56 km) |
| Rocca Priora to Ortona | 92.47 mi (148.82 km) |
| Rocca Priora to Orvieto | 72.80 mi (117.17 km) |
| Rocca Priora to Orzinuovi | 287.27 mi (462.31 km) |
| Rocca Priora to Osimo | 122.98 mi (197.91 km) |
| Rocca Priora to Ospitaletto | 293.29 mi (472.00 km) |
| Rocca Priora to Ostuni | 260.44 mi (419.14 km) |
| Rocca Priora to Ottaviano | 109.72 mi (176.58 km) |
| Rocca Priora to Ovada | 286.26 mi (460.70 km) |
| Rocca Priora to Ozieri | 212.47 mi (341.93 km) |
| Rocca Priora to Paceco | 262.81 mi (422.94 km) |
