| Cardak to Oerlinghausen | 1,408.84 mi (2,267.30 km) |
| Cardak to Oestrich-Winkel | 1,359.57 mi (2,188.02 km) |
| Cardak to Offenburg | 1,312.52 mi (2,112.29 km) |
| Cardak to Oftersheim | 1,315.34 mi (2,116.83 km) |
| Cardak to Ohrdruf | 1,290.51 mi (2,076.87 km) |
| Cardak to Ohringen | 1,273.71 mi (2,049.83 km) |
| Cardak to Olbernhau | 1,195.35 mi (1,923.73 km) |
| Cardak to Olching | 1,167.17 mi (1,878.37 km) |
| Cardak to Oldenburg | 1,472.50 mi (2,369.76 km) |
| Cardak to Oldenburg in Holstein | 1,442.21 mi (2,321.02 km) |
| Cardak to Olfen | 1,444.40 mi (2,324.54 km) |
| Cardak to Olpe | 1,402.05 mi (2,256.38 km) |
| Cardak to Olsberg | 1,390.98 mi (2,238.57 km) |
| Cardak to Oranienburg | 1,298.33 mi (2,089.47 km) |
| Cardak to Ortenberg | 1,332.43 mi (2,144.33 km) |
