| Kostinbrod to Opwijk | 1,055.82 mi (1,699.18 km) |
| Kostinbrod to Ostend | 1,113.19 mi (1,791.50 km) |
| Kostinbrod to Oud-Heverlee | 1,032.84 mi (1,662.19 km) |
| Kostinbrod to Oud-Turnhout | 1,035.32 mi (1,666.19 km) |
| Kostinbrod to Oudenaarde | 1,075.72 mi (1,731.20 km) |
| Kostinbrod to Oudenburg | 1,108.81 mi (1,784.46 km) |
| Kostinbrod to Oupeye | 990.68 mi (1,594.35 km) |
| Kostinbrod to Overijse | 1,036.65 mi (1,668.33 km) |
| Kostinbrod to Overpelt | 1,015.52 mi (1,634.32 km) |
| Kostinbrod to Paal | 1,019.28 mi (1,640.37 km) |
| Kostinbrod to Peer | 1,011.40 mi (1,627.70 km) |
| Kostinbrod to Pepinster | 979.51 mi (1,576.37 km) |
| Kostinbrod to Peruwelz | 1,067.44 mi (1,717.89 km) |
| Kostinbrod to Perwez | 1,020.85 mi (1,642.90 km) |
| Kostinbrod to Philippeville | 1,019.70 mi (1,641.05 km) |
