| Fritzlar to Obernburg am Main | 89.58 mi (144.16 km) |
| Fritzlar to Obernkirchen | 78.61 mi (126.51 km) |
| Fritzlar to Oberschleissheim | 223.81 mi (360.19 km) |
| Fritzlar to Oberstdorf | 261.16 mi (420.29 km) |
| Fritzlar to Obertraubling | 196.93 mi (316.94 km) |
| Fritzlar to Obertshausen | 76.29 mi (122.78 km) |
| Fritzlar to Oberursel | 71.31 mi (114.77 km) |
| Fritzlar to Ochsenfurt | 108.14 mi (174.03 km) |
| Fritzlar to Ochsenhausen | 213.58 mi (343.73 km) |
| Fritzlar to Ochtrup | 116.32 mi (187.20 km) |
| Fritzlar to Odenthal | 94.29 mi (151.74 km) |
| Fritzlar to Oelde | 68.68 mi (110.53 km) |
| Fritzlar to Oelsnitz | 135.35 mi (217.83 km) |
| Fritzlar to Oer-Erkenschwick | 94.42 mi (151.96 km) |
| Fritzlar to Oerlinghausen | 63.38 mi (102.01 km) |
