| Altopascio to Opwijk | 579.56 mi (932.71 km) |
| Altopascio to Ostend | 626.38 mi (1,008.06 km) |
| Altopascio to Oud-Heverlee | 560.31 mi (901.73 km) |
| Altopascio to Oud-Turnhout | 581.94 mi (936.53 km) |
| Altopascio to Oudenaarde | 587.76 mi (945.91 km) |
| Altopascio to Oudenburg | 621.91 mi (1,000.87 km) |
| Altopascio to Oupeye | 531.28 mi (855.02 km) |
| Altopascio to Overijse | 560.56 mi (902.13 km) |
| Altopascio to Overpelt | 566.93 mi (912.38 km) |
| Altopascio to Paal | 561.20 mi (903.16 km) |
| Altopascio to Peer | 561.05 mi (902.93 km) |
| Altopascio to Pepinster | 519.07 mi (835.36 km) |
| Altopascio to Peruwelz | 569.99 mi (917.31 km) |
| Altopascio to Perwez | 544.63 mi (876.50 km) |
| Altopascio to Philippeville | 526.87 mi (847.92 km) |
