| Samokov to Oestrich-Winkel | 910.52 mi (1,465.34 km) |
| Samokov to Offenburg | 865.84 mi (1,393.43 km) |
| Samokov to Oftersheim | 866.57 mi (1,394.60 km) |
| Samokov to Ohrdruf | 843.33 mi (1,357.20 km) |
| Samokov to Ohringen | 824.79 mi (1,327.37 km) |
| Samokov to Olbernhau | 751.95 mi (1,210.15 km) |
| Samokov to Olching | 718.57 mi (1,156.42 km) |
| Samokov to Oldenburg | 1,028.11 mi (1,654.58 km) |
| Samokov to Oldenburg in Holstein | 1,007.73 mi (1,621.78 km) |
| Samokov to Olfen | 996.14 mi (1,603.13 km) |
| Samokov to Olpe | 953.23 mi (1,534.07 km) |
| Samokov to Olsberg | 942.86 mi (1,517.38 km) |
| Samokov to Oranienburg | 863.93 mi (1,390.36 km) |
| Samokov to Ortenberg | 883.49 mi (1,421.83 km) |
| Samokov to Oschatz | 790.58 mi (1,272.31 km) |
