| Casalpusterlengo to Opwijk | 472.65 mi (760.65 km) |
| Casalpusterlengo to Ostend | 519.81 mi (836.56 km) |
| Casalpusterlengo to Oud-Heverlee | 453.36 mi (729.62 km) |
| Casalpusterlengo to Oud-Turnhout | 475.17 mi (764.71 km) |
| Casalpusterlengo to Oudenaarde | 481.09 mi (774.24 km) |
| Casalpusterlengo to Oudenburg | 515.33 mi (829.35 km) |
| Casalpusterlengo to Oupeye | 424.59 mi (683.31 km) |
| Casalpusterlengo to Overijse | 453.62 mi (730.04 km) |
| Casalpusterlengo to Overpelt | 460.36 mi (740.88 km) |
| Casalpusterlengo to Paal | 454.41 mi (731.30 km) |
| Casalpusterlengo to Peer | 454.46 mi (731.39 km) |
| Casalpusterlengo to Pepinster | 412.41 mi (663.71 km) |
| Casalpusterlengo to Peruwelz | 463.57 mi (746.05 km) |
| Casalpusterlengo to Perwez | 437.69 mi (704.39 km) |
| Casalpusterlengo to Philippeville | 420.10 mi (676.09 km) |
