| Castelfiorentino to Opwijk | 599.55 mi (964.89 km) |
| Castelfiorentino to Ostend | 646.61 mi (1,040.62 km) |
| Castelfiorentino to Oud-Heverlee | 580.19 mi (933.72 km) |
| Castelfiorentino to Oud-Turnhout | 601.52 mi (968.05 km) |
| Castelfiorentino to Oudenaarde | 607.95 mi (978.40 km) |
| Castelfiorentino to Oudenburg | 642.14 mi (1,033.43 km) |
| Castelfiorentino to Oupeye | 550.81 mi (886.45 km) |
| Castelfiorentino to Overijse | 580.50 mi (934.23 km) |
| Castelfiorentino to Overpelt | 586.36 mi (943.66 km) |
| Castelfiorentino to Paal | 580.81 mi (934.72 km) |
| Castelfiorentino to Peer | 580.50 mi (934.23 km) |
| Castelfiorentino to Pepinster | 538.58 mi (866.75 km) |
| Castelfiorentino to Peruwelz | 590.27 mi (949.95 km) |
| Castelfiorentino to Perwez | 564.53 mi (908.53 km) |
| Castelfiorentino to Philippeville | 547.01 mi (880.32 km) |
