| Marly-le-Roi to Opwijk | 172.28 mi (277.26 km) |
| Marly-le-Roi to Ostend | 167.04 mi (268.83 km) |
| Marly-le-Roi to Oud-Heverlee | 177.72 mi (286.02 km) |
| Marly-le-Roi to Oud-Turnhout | 212.22 mi (341.53 km) |
| Marly-le-Roi to Oudenaarde | 152.55 mi (245.50 km) |
| Marly-le-Roi to Oudenburg | 165.02 mi (265.57 km) |
| Marly-le-Roi to Oupeye | 203.06 mi (326.79 km) |
| Marly-le-Roi to Overijse | 171.31 mi (275.69 km) |
| Marly-le-Roi to Overpelt | 219.26 mi (352.87 km) |
| Marly-le-Roi to Paal | 203.09 mi (326.84 km) |
| Marly-le-Roi to Peer | 216.22 mi (347.98 km) |
| Marly-le-Roi to Pepinster | 203.55 mi (327.58 km) |
| Marly-le-Roi to Peruwelz | 131.99 mi (212.42 km) |
| Marly-le-Roi to Perwez | 171.72 mi (276.36 km) |
| Marly-le-Roi to Philippeville | 143.55 mi (231.02 km) |
