| Caerphilly to Willich | 421.08 mi (677.67 km) |
| Caerphilly to Willstatt | 535.08 mi (861.13 km) |
| Caerphilly to Wilnsdorf | 492.34 mi (792.35 km) |
| Caerphilly to Wilsdruff | 722.96 mi (1,163.49 km) |
| Caerphilly to Winnenden | 587.16 mi (944.95 km) |
| Caerphilly to Winsen | 577.85 mi (929.96 km) |
| Caerphilly to Winterberg | 506.08 mi (814.47 km) |
| Caerphilly to Wipperfurth | 458.93 mi (738.57 km) |
| Caerphilly to Wismar | 633.62 mi (1,019.71 km) |
| Caerphilly to Witten | 453.49 mi (729.82 km) |
| Caerphilly to Wittenberg | 678.05 mi (1,091.22 km) |
| Caerphilly to Wittenberge | 638.96 mi (1,028.31 km) |
| Caerphilly to Wittingen | 595.75 mi (958.77 km) |
| Caerphilly to Wittlich | 454.63 mi (731.65 km) |
| Caerphilly to Wittmund | 481.42 mi (774.78 km) |
