| Rostusa to Oerlinghausen | 909.02 mi (1,462.93 km) |
| Rostusa to Oestrich-Winkel | 837.16 mi (1,347.28 km) |
| Rostusa to Offenburg | 777.36 mi (1,251.04 km) |
| Rostusa to Oftersheim | 789.59 mi (1,270.73 km) |
| Rostusa to Ohrdruf | 791.09 mi (1,273.14 km) |
| Rostusa to Ohringen | 750.17 mi (1,207.28 km) |
| Rostusa to Olbernhau | 715.16 mi (1,150.94 km) |
| Rostusa to Olching | 642.32 mi (1,033.72 km) |
| Rostusa to Oldenburg | 982.37 mi (1,580.97 km) |
| Rostusa to Oldenburg in Holstein | 983.25 mi (1,582.38 km) |
| Rostusa to Olfen | 935.42 mi (1,505.41 km) |
| Rostusa to Olpe | 888.40 mi (1,429.74 km) |
| Rostusa to Olsberg | 883.80 mi (1,422.34 km) |
| Rostusa to Oranienburg | 843.02 mi (1,356.71 km) |
| Rostusa to Ortenberg | 818.12 mi (1,316.63 km) |
