| Giffoni Valle Piana to Opwijk | 875.16 mi (1,408.43 km) |
| Giffoni Valle Piana to Ostend | 924.93 mi (1,488.54 km) |
| Giffoni Valle Piana to Oud-Heverlee | 854.62 mi (1,375.38 km) |
| Giffoni Valle Piana to Oud-Turnhout | 872.51 mi (1,404.17 km) |
| Giffoni Valle Piana to Oudenaarde | 885.81 mi (1,425.57 km) |
| Giffoni Valle Piana to Oudenburg | 920.41 mi (1,481.25 km) |
| Giffoni Valle Piana to Oupeye | 821.66 mi (1,322.34 km) |
| Giffoni Valle Piana to Overijse | 855.65 mi (1,377.03 km) |
| Giffoni Valle Piana to Overpelt | 855.86 mi (1,377.37 km) |
| Giffoni Valle Piana to Paal | 852.25 mi (1,371.56 km) |
| Giffoni Valle Piana to Peer | 850.22 mi (1,368.29 km) |
| Giffoni Valle Piana to Pepinster | 809.28 mi (1,302.40 km) |
| Giffoni Valle Piana to Peruwelz | 869.38 mi (1,399.13 km) |
| Giffoni Valle Piana to Perwez | 839.32 mi (1,350.76 km) |
| Giffoni Valle Piana to Philippeville | 824.52 mi (1,326.93 km) |
