| Hertford to Dillenburg | 368.63 mi (593.25 km) |
| Hertford to Dillingen | 516.50 mi (831.22 km) |
| Hertford to Dillingen | 343.15 mi (552.25 km) |
| Hertford to Dingolfing | 596.53 mi (960.03 km) |
| Hertford to Dinkelsbuhl | 494.25 mi (795.42 km) |
| Hertford to Dinklage | 352.42 mi (567.16 km) |
| Hertford to Dinslaken | 292.10 mi (470.08 km) |
| Hertford to Dippoldiswalde | 595.54 mi (958.43 km) |
| Hertford to Ditzingen | 452.22 mi (727.78 km) |
| Hertford to Dobeln | 568.99 mi (915.71 km) |
| Hertford to Doberlug-Kirchhain | 583.47 mi (939.00 km) |
| Hertford to Donaueschingen | 464.82 mi (748.06 km) |
| Hertford to Donauworth | 525.39 mi (845.53 km) |
| Hertford to Donzdorf | 486.73 mi (783.31 km) |
| Hertford to Dorfen | 594.01 mi (955.97 km) |
