| Castle Bromwich to Opwijk | 276.53 mi (445.03 km) |
| Castle Bromwich to Ostend | 219.28 mi (352.90 km) |
| Castle Bromwich to Oud-Heverlee | 299.51 mi (482.02 km) |
| Castle Bromwich to Oud-Turnhout | 299.83 mi (482.54 km) |
| Castle Bromwich to Oudenaarde | 257.43 mi (414.30 km) |
| Castle Bromwich to Oudenburg | 223.70 mi (360.02 km) |
| Castle Bromwich to Oupeye | 341.89 mi (550.22 km) |
| Castle Bromwich to Overijse | 295.76 mi (475.98 km) |
| Castle Bromwich to Overpelt | 319.80 mi (514.67 km) |
| Castle Bromwich to Paal | 314.12 mi (505.52 km) |
| Castle Bromwich to Peer | 323.23 mi (520.19 km) |
| Castle Bromwich to Pepinster | 352.89 mi (567.93 km) |
| Castle Bromwich to Peruwelz | 268.55 mi (432.19 km) |
| Castle Bromwich to Perwez | 311.71 mi (501.65 km) |
| Castle Bromwich to Philippeville | 316.23 mi (508.92 km) |
