| Caerphilly to Dormagen | 434.04 mi (698.53 km) |
| Caerphilly to Dornstadt | 621.34 mi (999.95 km) |
| Caerphilly to Dorsten | 436.49 mi (702.46 km) |
| Caerphilly to Dortmund | 458.70 mi (738.21 km) |
| Caerphilly to Dorverden | 533.69 mi (858.89 km) |
| Caerphilly to Dossenheim | 542.03 mi (872.31 km) |
| Caerphilly to Dreieich | 531.22 mi (854.92 km) |
| Caerphilly to Drensteinfurt | 469.15 mi (755.03 km) |
| Caerphilly to Dresden | 731.63 mi (1,177.44 km) |
| Caerphilly to Drochtersen | 547.49 mi (881.10 km) |
| Caerphilly to Drolshagen | 475.52 mi (765.28 km) |
| Caerphilly to Duderstadt | 578.32 mi (930.71 km) |
| Caerphilly to Duisburg | 429.00 mi (690.41 km) |
| Caerphilly to Dulmen | 449.38 mi (723.22 km) |
| Caerphilly to Duren | 423.21 mi (681.10 km) |
