| Ros Comain to Oerlinghausen | 711.50 mi (1,145.05 km) |
| Ros Comain to Oestrich-Winkel | 733.42 mi (1,180.33 km) |
| Ros Comain to Offenburg | 783.36 mi (1,260.70 km) |
| Ros Comain to Oftersheim | 776.66 mi (1,249.92 km) |
| Ros Comain to Ohrdruf | 820.95 mi (1,321.19 km) |
| Ros Comain to Ohringen | 818.51 mi (1,317.27 km) |
| Ros Comain to Olbernhau | 931.08 mi (1,498.43 km) |
| Ros Comain to Olching | 924.79 mi (1,488.31 km) |
| Ros Comain to Oldenburg | 675.01 mi (1,086.33 km) |
| Ros Comain to Oldenburg in Holstein | 773.95 mi (1,245.55 km) |
| Ros Comain to Olfen | 664.02 mi (1,068.64 km) |
| Ros Comain to Olpe | 698.43 mi (1,124.01 km) |
| Ros Comain to Olsberg | 716.88 mi (1,153.71 km) |
| Ros Comain to Oranienburg | 885.38 mi (1,424.89 km) |
| Ros Comain to Ortenberg | 765.34 mi (1,231.70 km) |
