| Rosoman to Oerlinghausen | 954.56 mi (1,536.21 km) |
| Rosoman to Oestrich-Winkel | 889.50 mi (1,431.51 km) |
| Rosoman to Offenburg | 834.41 mi (1,342.85 km) |
| Rosoman to Oftersheim | 842.98 mi (1,356.65 km) |
| Rosoman to Ohrdruf | 835.95 mi (1,345.34 km) |
| Rosoman to Ohringen | 802.65 mi (1,291.73 km) |
| Rosoman to Olbernhau | 753.98 mi (1,213.42 km) |
| Rosoman to Olching | 694.89 mi (1,118.31 km) |
| Rosoman to Oldenburg | 1,025.52 mi (1,650.42 km) |
| Rosoman to Oldenburg in Holstein | 1,018.49 mi (1,639.10 km) |
| Rosoman to Olfen | 983.75 mi (1,583.19 km) |
| Rosoman to Olpe | 938.01 mi (1,509.58 km) |
| Rosoman to Olsberg | 931.41 mi (1,498.95 km) |
| Rosoman to Oranienburg | 876.39 mi (1,410.41 km) |
| Rosoman to Ortenberg | 867.69 mi (1,396.42 km) |
