| Porcari to Oberkirch | 346.02 mi (556.87 km) |
| Porcari to Obernburg am Main | 420.25 mi (676.33 km) |
| Porcari to Obernkirchen | 586.17 mi (943.35 km) |
| Porcari to Oberschleissheim | 307.98 mi (495.65 km) |
| Porcari to Oberstdorf | 247.08 mi (397.63 km) |
| Porcari to Obertraubling | 361.66 mi (582.03 km) |
| Porcari to Obertshausen | 438.23 mi (705.26 km) |
| Porcari to Oberursel | 449.88 mi (724.02 km) |
| Porcari to Ochsenfurt | 402.17 mi (647.23 km) |
| Porcari to Ochsenhausen | 294.07 mi (473.25 km) |
| Porcari to Ochtrup | 599.02 mi (964.03 km) |
| Porcari to Odenthal | 522.97 mi (841.64 km) |
| Porcari to Oelde | 563.81 mi (907.37 km) |
| Porcari to Oelsnitz | 460.08 mi (740.43 km) |
| Porcari to Oer-Erkenschwick | 561.04 mi (902.91 km) |
