| Tettnang to Oerlinghausen | 299.64 mi (482.22 km) |
| Tettnang to Oestrich-Winkel | 176.37 mi (283.85 km) |
| Tettnang to Offenburg | 94.11 mi (151.45 km) |
| Tettnang to Oftersheim | 126.09 mi (202.92 km) |
| Tettnang to Ohrdruf | 224.17 mi (360.77 km) |
| Tettnang to Ohringen | 105.73 mi (170.16 km) |
| Tettnang to Olbernhau | 267.29 mi (430.16 km) |
| Tettnang to Olching | 88.00 mi (141.62 km) |
| Tettnang to Oldenburg | 382.94 mi (616.29 km) |
| Tettnang to Oldenburg in Holstein | 461.47 mi (742.66 km) |
| Tettnang to Olfen | 296.36 mi (476.94 km) |
| Tettnang to Olpe | 244.28 mi (393.12 km) |
| Tettnang to Olsberg | 258.98 mi (416.79 km) |
| Tettnang to Oranienburg | 386.41 mi (621.87 km) |
| Tettnang to Ortenberg | 187.08 mi (301.07 km) |
