| Cologno al Serio to Opwijk | 449.95 mi (724.13 km) |
| Cologno al Serio to Ostend | 498.28 mi (801.90 km) |
| Cologno al Serio to Oud-Heverlee | 430.23 mi (692.38 km) |
| Cologno al Serio to Oud-Turnhout | 451.05 mi (725.90 km) |
| Cologno al Serio to Oudenaarde | 459.32 mi (739.21 km) |
| Cologno al Serio to Oudenburg | 493.77 mi (794.65 km) |
| Cologno al Serio to Oupeye | 400.31 mi (644.24 km) |
| Cologno al Serio to Overijse | 430.74 mi (693.20 km) |
| Cologno al Serio to Overpelt | 435.83 mi (701.40 km) |
| Cologno al Serio to Paal | 430.37 mi (692.61 km) |
| Cologno al Serio to Peer | 429.97 mi (691.97 km) |
| Cologno al Serio to Pepinster | 388.06 mi (624.53 km) |
| Cologno al Serio to Peruwelz | 442.41 mi (712.00 km) |
| Cologno al Serio to Perwez | 414.65 mi (667.31 km) |
| Cologno al Serio to Philippeville | 398.14 mi (640.74 km) |
