| Roudnice nad Labem to Opwijk | 442.33 mi (711.86 km) |
| Roudnice nad Labem to Ostend | 497.61 mi (800.83 km) |
| Roudnice nad Labem to Oud-Heverlee | 421.18 mi (677.83 km) |
| Roudnice nad Labem to Oud-Turnhout | 408.94 mi (658.13 km) |
| Roudnice nad Labem to Oudenaarde | 467.72 mi (752.72 km) |
| Roudnice nad Labem to Oudenburg | 494.03 mi (795.07 km) |
| Roudnice nad Labem to Oupeye | 378.53 mi (609.19 km) |
| Roudnice nad Labem to Overijse | 427.02 mi (687.22 km) |
| Roudnice nad Labem to Overpelt | 389.69 mi (627.14 km) |
| Roudnice nad Labem to Paal | 399.48 mi (642.90 km) |
| Roudnice nad Labem to Peer | 387.67 mi (623.89 km) |
| Roudnice nad Labem to Pepinster | 371.11 mi (597.24 km) |
| Roudnice nad Labem to Peruwelz | 469.23 mi (755.16 km) |
| Roudnice nad Labem to Perwez | 414.90 mi (667.72 km) |
| Roudnice nad Labem to Philippeville | 428.49 mi (689.59 km) |
