| Hackettstown to Dormagen | 3,778.16 mi (6,080.36 km) |
| Hackettstown to Dornstadt | 3,981.68 mi (6,407.90 km) |
| Hackettstown to Dorsten | 3,768.67 mi (6,065.08 km) |
| Hackettstown to Dortmund | 3,792.40 mi (6,103.27 km) |
| Hackettstown to Dorverden | 3,823.84 mi (6,153.87 km) |
| Hackettstown to Dossenheim | 3,900.08 mi (6,276.57 km) |
| Hackettstown to Dreieich | 3,884.85 mi (6,252.06 km) |
| Hackettstown to Drensteinfurt | 3,795.42 mi (6,108.13 km) |
| Hackettstown to Dresden | 4,050.68 mi (6,518.94 km) |
| Hackettstown to Drochtersen | 3,805.98 mi (6,125.13 km) |
| Hackettstown to Drolshagen | 3,817.76 mi (6,144.10 km) |
| Hackettstown to Duderstadt | 3,901.83 mi (6,279.38 km) |
| Hackettstown to Duisburg | 3,766.84 mi (6,062.14 km) |
| Hackettstown to Dulmen | 3,776.35 mi (6,077.45 km) |
| Hackettstown to Duren | 3,773.11 mi (6,072.24 km) |
