| Castello de Ampurias to Opwijk | 603.98 mi (972.01 km) |
| Castello de Ampurias to Ostend | 619.64 mi (997.22 km) |
| Castello de Ampurias to Oud-Heverlee | 597.25 mi (961.19 km) |
| Castello de Ampurias to Oud-Turnhout | 632.30 mi (1,017.59 km) |
| Castello de Ampurias to Oudenaarde | 594.16 mi (956.20 km) |
| Castello de Ampurias to Oudenburg | 616.67 mi (992.44 km) |
| Castello de Ampurias to Oupeye | 596.40 mi (959.81 km) |
| Castello de Ampurias to Overijse | 593.06 mi (954.44 km) |
| Castello de Ampurias to Overpelt | 628.74 mi (1,011.86 km) |
| Castello de Ampurias to Paal | 614.75 mi (989.34 km) |
| Castello de Ampurias to Peer | 623.36 mi (1,003.21 km) |
| Castello de Ampurias to Pepinster | 588.62 mi (947.30 km) |
| Castello de Ampurias to Peruwelz | 571.12 mi (919.13 km) |
| Castello de Ampurias to Perwez | 583.89 mi (939.68 km) |
| Castello de Ampurias to Philippeville | 553.21 mi (890.30 km) |
