| Caerfyrddin to Mouscron | 334.40 mi (538.17 km) |
| Caerfyrddin to Namur | 409.00 mi (658.22 km) |
| Caerfyrddin to Neder-Over-Heembeek | 380.70 mi (612.68 km) |
| Caerfyrddin to Neerpelt | 420.81 mi (677.22 km) |
| Caerfyrddin to Nevele | 343.30 mi (552.49 km) |
| Caerfyrddin to Niel | 375.39 mi (604.13 km) |
| Caerfyrddin to Nieuwpoort | 308.14 mi (495.91 km) |
| Caerfyrddin to Nijlen | 388.22 mi (624.79 km) |
| Caerfyrddin to Ninove | 366.28 mi (589.48 km) |
| Caerfyrddin to Nivelles | 383.54 mi (617.25 km) |
| Caerfyrddin to Olen | 396.95 mi (638.84 km) |
| Caerfyrddin to Oostakker | 351.53 mi (565.73 km) |
| Caerfyrddin to Oosterzele | 355.18 mi (571.61 km) |
| Caerfyrddin to Oostkamp | 328.20 mi (528.19 km) |
| Caerfyrddin to Opglabbeek | 429.50 mi (691.22 km) |
