| Kozlu to Oerlinghausen | 1,304.89 mi (2,100.01 km) |
| Kozlu to Oestrich-Winkel | 1,281.88 mi (2,062.99 km) |
| Kozlu to Offenburg | 1,255.34 mi (2,020.28 km) |
| Kozlu to Oftersheim | 1,243.65 mi (2,001.47 km) |
| Kozlu to Ohrdruf | 1,191.03 mi (1,916.78 km) |
| Kozlu to Ohringen | 1,200.77 mi (1,932.46 km) |
| Kozlu to Olbernhau | 1,084.57 mi (1,745.45 km) |
| Kozlu to Olching | 1,100.75 mi (1,771.48 km) |
| Kozlu to Oldenburg | 1,357.56 mi (2,184.78 km) |
| Kozlu to Oldenburg in Holstein | 1,304.51 mi (2,099.40 km) |
| Kozlu to Olfen | 1,348.27 mi (2,169.83 km) |
| Kozlu to Olpe | 1,312.43 mi (2,112.15 km) |
| Kozlu to Olsberg | 1,294.89 mi (2,083.93 km) |
| Kozlu to Oranienburg | 1,164.30 mi (1,873.77 km) |
| Kozlu to Ortenberg | 1,246.16 mi (2,005.49 km) |
