| Helensburgh to Dormagen | 581.99 mi (936.63 km) |
| Helensburgh to Dornstadt | 807.92 mi (1,300.22 km) |
| Helensburgh to Dorsten | 562.85 mi (905.83 km) |
| Helensburgh to Dortmund | 586.05 mi (943.16 km) |
| Helensburgh to Dorverden | 601.11 mi (967.40 km) |
| Helensburgh to Dossenheim | 719.33 mi (1,157.64 km) |
| Helensburgh to Dreieich | 694.25 mi (1,117.29 km) |
| Helensburgh to Drensteinfurt | 584.30 mi (940.34 km) |
| Helensburgh to Dresden | 829.28 mi (1,334.60 km) |
| Helensburgh to Drochtersen | 582.62 mi (937.63 km) |
| Helensburgh to Drolshagen | 616.77 mi (992.59 km) |
| Helensburgh to Duderstadt | 684.94 mi (1,102.30 km) |
| Helensburgh to Duisburg | 565.52 mi (910.11 km) |
| Helensburgh to Dulmen | 566.75 mi (912.09 km) |
| Helensburgh to Duren | 584.76 mi (941.08 km) |
