| Monsummano to Oberkirch | 347.86 mi (559.83 km) |
| Monsummano to Obernburg am Main | 420.21 mi (676.26 km) |
| Monsummano to Obernkirchen | 585.60 mi (942.43 km) |
| Monsummano to Oberschleissheim | 304.98 mi (490.82 km) |
| Monsummano to Oberstdorf | 246.17 mi (396.17 km) |
| Monsummano to Obertraubling | 358.12 mi (576.34 km) |
| Monsummano to Obertshausen | 438.42 mi (705.58 km) |
| Monsummano to Oberursel | 450.29 mi (724.66 km) |
| Monsummano to Ochsenfurt | 401.16 mi (645.60 km) |
| Monsummano to Ochsenhausen | 293.54 mi (472.41 km) |
| Monsummano to Ochtrup | 599.83 mi (965.33 km) |
| Monsummano to Odenthal | 524.30 mi (843.78 km) |
| Monsummano to Oelde | 564.05 mi (907.75 km) |
| Monsummano to Oelsnitz | 456.97 mi (735.41 km) |
| Monsummano to Oer-Erkenschwick | 562.01 mi (904.47 km) |
