| Nidda to Obernburg am Main | 40.01 mi (64.39 km) |
| Nidda to Obernkirchen | 128.16 mi (206.25 km) |
| Nidda to Oberschleissheim | 188.63 mi (303.58 km) |
| Nidda to Oberstdorf | 215.35 mi (346.57 km) |
| Nidda to Obertraubling | 172.94 mi (278.32 km) |
| Nidda to Obertshausen | 25.14 mi (40.47 km) |
| Nidda to Oberursel | 23.95 mi (38.54 km) |
| Nidda to Ochsenfurt | 70.57 mi (113.58 km) |
| Nidda to Ochsenhausen | 167.17 mi (269.03 km) |
| Nidda to Ochtrup | 146.67 mi (236.04 km) |
| Nidda to Odenthal | 93.22 mi (150.02 km) |
| Nidda to Oelde | 104.98 mi (168.95 km) |
| Nidda to Oelsnitz | 139.01 mi (223.71 km) |
| Nidda to Oer-Erkenschwick | 114.25 mi (183.87 km) |
| Nidda to Oerlinghausen | 108.38 mi (174.43 km) |
