| Karlsfeld to Obernburg am Main | 153.86 mi (247.61 km) |
| Karlsfeld to Obernkirchen | 298.40 mi (480.22 km) |
| Karlsfeld to Oberschleissheim | 5.15 mi (8.28 km) |
| Karlsfeld to Oberstdorf | 78.39 mi (126.15 km) |
| Karlsfeld to Obertraubling | 60.85 mi (97.93 km) |
| Karlsfeld to Obertshausen | 174.64 mi (281.06 km) |
| Karlsfeld to Oberursel | 189.33 mi (304.69 km) |
| Karlsfeld to Ochsenfurt | 117.66 mi (189.36 km) |
| Karlsfeld to Ochsenhausen | 70.72 mi (113.81 km) |
| Karlsfeld to Ochtrup | 334.11 mi (537.69 km) |
| Karlsfeld to Odenthal | 275.19 mi (442.87 km) |
| Karlsfeld to Oelde | 289.96 mi (466.64 km) |
| Karlsfeld to Oelsnitz | 155.24 mi (249.83 km) |
| Karlsfeld to Oer-Erkenschwick | 301.85 mi (485.78 km) |
| Karlsfeld to Oerlinghausen | 287.24 mi (462.27 km) |
