| Hackettstown to Dillenburg | 3,846.83 mi (6,190.87 km) |
| Hackettstown to Dillingen | 4,000.03 mi (6,437.42 km) |
| Hackettstown to Dillingen | 3,824.02 mi (6,154.17 km) |
| Hackettstown to Dingolfing | 4,080.15 mi (6,566.37 km) |
| Hackettstown to Dinkelsbuhl | 3,978.27 mi (6,402.40 km) |
| Hackettstown to Dinklage | 3,786.74 mi (6,094.17 km) |
| Hackettstown to Dinslaken | 3,762.10 mi (6,054.51 km) |
| Hackettstown to Dippoldiswalde | 4,052.89 mi (6,522.50 km) |
| Hackettstown to Ditzingen | 3,934.92 mi (6,332.64 km) |
| Hackettstown to Dobeln | 4,024.32 mi (6,476.51 km) |
| Hackettstown to Doberlug-Kirchhain | 4,025.99 mi (6,479.20 km) |
| Hackettstown to Donaueschingen | 3,938.48 mi (6,338.36 km) |
| Hackettstown to Donauworth | 4,009.35 mi (6,452.43 km) |
| Hackettstown to Donzdorf | 3,969.91 mi (6,388.95 km) |
| Hackettstown to Dorfen | 4,078.01 mi (6,562.92 km) |
