| Tonypandy to Opwijk | 332.79 mi (535.57 km) |
| Tonypandy to Ostend | 275.74 mi (443.76 km) |
| Tonypandy to Oud-Heverlee | 355.26 mi (571.73 km) |
| Tonypandy to Oud-Turnhout | 363.43 mi (584.89 km) |
| Tonypandy to Oudenaarde | 309.54 mi (498.16 km) |
| Tonypandy to Oudenburg | 279.62 mi (450.01 km) |
| Tonypandy to Oupeye | 398.78 mi (641.78 km) |
| Tonypandy to Overijse | 350.30 mi (563.76 km) |
| Tonypandy to Overpelt | 382.88 mi (616.19 km) |
| Tonypandy to Paal | 374.26 mi (602.31 km) |
| Tonypandy to Peer | 385.28 mi (620.05 km) |
| Tonypandy to Pepinster | 408.43 mi (657.31 km) |
| Tonypandy to Peruwelz | 314.68 mi (506.44 km) |
| Tonypandy to Perwez | 364.84 mi (587.15 km) |
| Tonypandy to Philippeville | 361.95 mi (582.50 km) |
