| Calvisano to Oberkirch | 244.51 mi (393.51 km) |
| Calvisano to Obernburg am Main | 315.33 mi (507.47 km) |
| Calvisano to Obernkirchen | 481.19 mi (774.40 km) |
| Calvisano to Oberschleissheim | 208.59 mi (335.69 km) |
| Calvisano to Oberstdorf | 142.42 mi (229.21 km) |
| Calvisano to Obertraubling | 264.12 mi (425.07 km) |
| Calvisano to Obertshausen | 333.45 mi (536.63 km) |
| Calvisano to Oberursel | 345.29 mi (555.69 km) |
| Calvisano to Ochsenfurt | 297.46 mi (478.72 km) |
| Calvisano to Ochsenhausen | 189.10 mi (304.33 km) |
| Calvisano to Ochtrup | 494.93 mi (796.52 km) |
| Calvisano to Odenthal | 419.87 mi (675.71 km) |
| Calvisano to Oelde | 459.07 mi (738.80 km) |
| Calvisano to Oelsnitz | 360.14 mi (579.59 km) |
| Calvisano to Oer-Erkenschwick | 457.22 mi (735.83 km) |
