| Massa Lombarda to Oberkirch | 333.27 mi (536.35 km) |
| Massa Lombarda to Obernburg am Main | 392.99 mi (632.46 km) |
| Massa Lombarda to Obernkirchen | 553.99 mi (891.56 km) |
| Massa Lombarda to Oberschleissheim | 262.82 mi (422.98 km) |
| Massa Lombarda to Oberstdorf | 217.42 mi (349.91 km) |
| Massa Lombarda to Obertraubling | 312.45 mi (502.84 km) |
| Massa Lombarda to Obertshausen | 412.43 mi (663.75 km) |
| Massa Lombarda to Oberursel | 425.38 mi (684.58 km) |
| Massa Lombarda to Ochsenfurt | 368.58 mi (593.17 km) |
| Massa Lombarda to Ochsenhausen | 265.69 mi (427.59 km) |
| Massa Lombarda to Ochtrup | 576.17 mi (927.25 km) |
| Massa Lombarda to Odenthal | 504.31 mi (811.61 km) |
| Massa Lombarda to Oelde | 537.24 mi (864.60 km) |
| Massa Lombarda to Oelsnitz | 412.58 mi (663.99 km) |
| Massa Lombarda to Oer-Erkenschwick | 539.57 mi (868.35 km) |
