| Mexborough to Opwijk | 289.91 mi (466.56 km) |
| Mexborough to Ostend | 236.81 mi (381.11 km) |
| Mexborough to Oud-Heverlee | 312.09 mi (502.27 km) |
| Mexborough to Oud-Turnhout | 303.98 mi (489.21 km) |
| Mexborough to Oudenaarde | 276.14 mi (444.40 km) |
| Mexborough to Oudenburg | 241.36 mi (388.44 km) |
| Mexborough to Oupeye | 351.31 mi (565.38 km) |
| Mexborough to Overijse | 309.74 mi (498.48 km) |
| Mexborough to Overpelt | 323.53 mi (520.68 km) |
| Mexborough to Paal | 321.37 mi (517.20 km) |
| Mexborough to Peer | 327.97 mi (527.82 km) |
| Mexborough to Pepinster | 363.23 mi (584.57 km) |
| Mexborough to Peruwelz | 291.94 mi (469.83 km) |
| Mexborough to Perwez | 326.25 mi (525.05 km) |
| Mexborough to Philippeville | 337.36 mi (542.92 km) |
