| Caerphilly to Dillenburg | 501.29 mi (806.75 km) |
| Caerphilly to Dillingen | 640.38 mi (1,030.59 km) |
| Caerphilly to Dillingen | 463.51 mi (745.95 km) |
| Caerphilly to Dingolfing | 724.02 mi (1,165.19 km) |
| Caerphilly to Dinkelsbuhl | 620.74 mi (998.99 km) |
| Caerphilly to Dinklage | 486.85 mi (783.52 km) |
| Caerphilly to Dinslaken | 427.01 mi (687.21 km) |
| Caerphilly to Dippoldiswalde | 730.34 mi (1,175.37 km) |
| Caerphilly to Ditzingen | 574.75 mi (924.98 km) |
| Caerphilly to Dobeln | 703.99 mi (1,132.96 km) |
| Caerphilly to Doberlug-Kirchhain | 718.81 mi (1,156.82 km) |
| Caerphilly to Donaueschingen | 579.08 mi (931.94 km) |
| Caerphilly to Donauworth | 650.64 mi (1,047.11 km) |
| Caerphilly to Donzdorf | 609.99 mi (981.68 km) |
| Caerphilly to Dorfen | 719.29 mi (1,157.58 km) |
