| Treviglio to Opwijk | 450.84 mi (725.56 km) |
| Treviglio to Ostend | 498.72 mi (802.61 km) |
| Treviglio to Oud-Heverlee | 431.30 mi (694.11 km) |
| Treviglio to Oud-Turnhout | 452.56 mi (728.33 km) |
| Treviglio to Oudenaarde | 459.85 mi (740.05 km) |
| Treviglio to Oudenburg | 494.23 mi (795.38 km) |
| Treviglio to Oupeye | 401.89 mi (646.78 km) |
| Treviglio to Overijse | 431.70 mi (694.76 km) |
| Treviglio to Overpelt | 437.54 mi (704.14 km) |
| Treviglio to Paal | 431.84 mi (694.98 km) |
| Treviglio to Peer | 431.66 mi (694.69 km) |
| Treviglio to Pepinster | 389.67 mi (627.12 km) |
| Treviglio to Peruwelz | 442.71 mi (712.47 km) |
| Treviglio to Perwez | 415.68 mi (668.97 km) |
| Treviglio to Philippeville | 398.73 mi (641.69 km) |
