| Sozopol to Oestrich-Winkel | 1,073.18 mi (1,727.12 km) |
| Sozopol to Offenburg | 1,041.56 mi (1,676.24 km) |
| Sozopol to Oftersheim | 1,033.16 mi (1,662.71 km) |
| Sozopol to Ohrdruf | 989.16 mi (1,591.90 km) |
| Sozopol to Ohringen | 990.42 mi (1,593.92 km) |
| Sozopol to Olbernhau | 886.74 mi (1,427.07 km) |
| Sozopol to Olching | 888.30 mi (1,429.59 km) |
| Sozopol to Oldenburg | 1,162.93 mi (1,871.56 km) |
| Sozopol to Oldenburg in Holstein | 1,121.41 mi (1,804.73 km) |
| Sozopol to Olfen | 1,145.87 mi (1,844.10 km) |
| Sozopol to Olpe | 1,107.58 mi (1,782.48 km) |
| Sozopol to Olsberg | 1,092.25 mi (1,757.81 km) |
| Sozopol to Oranienburg | 978.51 mi (1,574.77 km) |
| Sozopol to Ortenberg | 1,039.91 mi (1,673.58 km) |
| Sozopol to Oschatz | 920.06 mi (1,480.70 km) |
