| Hackettstown to Coswig | 3,974.41 mi (6,396.20 km) |
| Hackettstown to Cottbus | 4,050.58 mi (6,518.77 km) |
| Hackettstown to Crailsheim | 3,966.23 mi (6,383.03 km) |
| Hackettstown to Cremlingen | 3,895.38 mi (6,269.00 km) |
| Hackettstown to Crimmitschau | 4,005.72 mi (6,446.58 km) |
| Hackettstown to Cuxhaven | 3,775.74 mi (6,076.47 km) |
| Hackettstown to Dachau | 4,049.16 mi (6,516.49 km) |
| Hackettstown to Dallgow-Doberitz | 3,977.82 mi (6,401.68 km) |
| Hackettstown to Damme | 3,793.25 mi (6,104.65 km) |
| Hackettstown to Darmstadt | 3,886.72 mi (6,255.08 km) |
| Hackettstown to Dassel | 3,871.21 mi (6,230.11 km) |
| Hackettstown to Datteln | 3,783.69 mi (6,089.26 km) |
| Hackettstown to Dautphe | 3,853.81 mi (6,202.11 km) |
| Hackettstown to Deggendorf | 4,092.32 mi (6,585.96 km) |
| Hackettstown to Delbruck | 3,828.54 mi (6,161.44 km) |
