| Modra to Oberkirch | 422.91 mi (680.60 km) |
| Modra to Obernburg am Main | 383.78 mi (617.63 km) |
| Modra to Obernkirchen | 451.88 mi (727.23 km) |
| Modra to Oberschleissheim | 263.97 mi (424.83 km) |
| Modra to Oberstdorf | 331.86 mi (534.07 km) |
| Modra to Obertraubling | 238.73 mi (384.19 km) |
| Modra to Obertshausen | 400.73 mi (644.91 km) |
| Modra to Oberursel | 414.09 mi (666.41 km) |
| Modra to Ochsenfurt | 340.59 mi (548.13 km) |
| Modra to Ochsenhausen | 339.32 mi (546.08 km) |
| Modra to Ochtrup | 520.22 mi (837.21 km) |
| Modra to Odenthal | 491.87 mi (791.59 km) |
| Modra to Oelde | 472.17 mi (759.89 km) |
| Modra to Oelsnitz | 272.43 mi (438.44 km) |
| Modra to Oer-Erkenschwick | 501.38 mi (806.89 km) |
