| Lake Tapps to Oerlinghausen | 4,992.94 mi (8,035.36 km) |
| Lake Tapps to Oestrich-Winkel | 5,091.65 mi (8,194.22 km) |
| Lake Tapps to Offenburg | 5,179.25 mi (8,335.19 km) |
| Lake Tapps to Oftersheim | 5,142.37 mi (8,275.85 km) |
| Lake Tapps to Ohrdruf | 5,106.79 mi (8,218.58 km) |
| Lake Tapps to Ohringen | 5,174.22 mi (8,327.10 km) |
| Lake Tapps to Olbernhau | 5,173.87 mi (8,326.54 km) |
| Lake Tapps to Olching | 5,276.15 mi (8,491.15 km) |
| Lake Tapps to Oldenburg | 4,914.31 mi (7,908.82 km) |
| Lake Tapps to Oldenburg in Holstein | 4,905.34 mi (7,894.39 km) |
| Lake Tapps to Olfen | 4,977.57 mi (8,010.62 km) |
| Lake Tapps to Olpe | 5,028.67 mi (8,092.86 km) |
| Lake Tapps to Olsberg | 5,024.58 mi (8,086.27 km) |
| Lake Tapps to Oranienburg | 5,046.54 mi (8,121.62 km) |
| Lake Tapps to Ortenberg | 5,095.95 mi (8,201.13 km) |
