| Tettnang to Oberkirch | 91.48 mi (147.22 km) |
| Tettnang to Obernburg am Main | 151.25 mi (243.41 km) |
| Tettnang to Obernkirchen | 318.21 mi (512.11 km) |
| Tettnang to Oberschleissheim | 99.93 mi (160.83 km) |
| Tettnang to Oberstdorf | 36.96 mi (59.49 km) |
| Tettnang to Obertraubling | 148.48 mi (238.96 km) |
| Tettnang to Obertshausen | 169.05 mi (272.06 km) |
| Tettnang to Oberursel | 180.89 mi (291.11 km) |
| Tettnang to Ochsenfurt | 138.49 mi (222.87 km) |
| Tettnang to Ochsenhausen | 32.38 mi (52.11 km) |
| Tettnang to Ochtrup | 330.91 mi (532.55 km) |
| Tettnang to Odenthal | 257.53 mi (414.46 km) |
| Tettnang to Oelde | 294.66 mi (474.20 km) |
| Tettnang to Oelsnitz | 222.77 mi (358.51 km) |
| Tettnang to Oer-Erkenschwick | 293.59 mi (472.49 km) |
