| Karnobat to Opwijk | 1,215.41 mi (1,956.02 km) |
| Karnobat to Ostend | 1,273.10 mi (2,048.85 km) |
| Karnobat to Oud-Heverlee | 1,192.48 mi (1,919.11 km) |
| Karnobat to Oud-Turnhout | 1,191.39 mi (1,917.36 km) |
| Karnobat to Oudenaarde | 1,236.87 mi (1,990.56 km) |
| Karnobat to Oudenburg | 1,268.86 mi (2,042.03 km) |
| Karnobat to Oupeye | 1,149.46 mi (1,849.87 km) |
| Karnobat to Overijse | 1,196.82 mi (1,926.09 km) |
| Karnobat to Overpelt | 1,171.43 mi (1,885.23 km) |
| Karnobat to Paal | 1,176.77 mi (1,893.83 km) |
| Karnobat to Peer | 1,167.79 mi (1,879.37 km) |
| Karnobat to Pepinster | 1,138.89 mi (1,832.86 km) |
| Karnobat to Peruwelz | 1,230.57 mi (1,980.41 km) |
| Karnobat to Perwez | 1,181.55 mi (1,901.52 km) |
| Karnobat to Philippeville | 1,183.36 mi (1,904.44 km) |
