| Castagneto Carducci to Opwijk | 617.22 mi (993.32 km) |
| Castagneto Carducci to Ostend | 662.58 mi (1,066.32 km) |
| Castagneto Carducci to Oud-Heverlee | 598.50 mi (963.20 km) |
| Castagneto Carducci to Oud-Turnhout | 621.25 mi (999.80 km) |
| Castagneto Carducci to Oudenaarde | 624.33 mi (1,004.76 km) |
| Castagneto Carducci to Oudenburg | 658.16 mi (1,059.21 km) |
| Castagneto Carducci to Oupeye | 570.82 mi (918.65 km) |
| Castagneto Carducci to Overijse | 598.47 mi (963.15 km) |
| Castagneto Carducci to Overpelt | 606.73 mi (976.45 km) |
| Castagneto Carducci to Paal | 600.44 mi (966.32 km) |
| Castagneto Carducci to Peer | 600.82 mi (966.92 km) |
| Castagneto Carducci to Pepinster | 558.70 mi (899.14 km) |
| Castagneto Carducci to Peruwelz | 605.91 mi (975.12 km) |
| Castagneto Carducci to Perwez | 582.74 mi (937.83 km) |
| Castagneto Carducci to Philippeville | 563.82 mi (907.38 km) |
