| Hardenberg to Coswig | 250.60 mi (403.29 km) |
| Hardenberg to Cottbus | 331.63 mi (533.70 km) |
| Hardenberg to Crailsheim | 280.87 mi (452.02 km) |
| Hardenberg to Cremlingen | 171.57 mi (276.11 km) |
| Hardenberg to Crimmitschau | 275.00 mi (442.57 km) |
| Hardenberg to Cuxhaven | 124.04 mi (199.62 km) |
| Hardenberg to Dachau | 365.23 mi (587.78 km) |
| Hardenberg to Dallgow-Doberitz | 270.21 mi (434.86 km) |
| Hardenberg to Damme | 66.54 mi (107.09 km) |
| Hardenberg to Darmstadt | 205.95 mi (331.44 km) |
| Hardenberg to Dassel | 140.47 mi (226.06 km) |
| Hardenberg to Datteln | 70.17 mi (112.93 km) |
| Hardenberg to Dautphe | 144.15 mi (231.99 km) |
| Hardenberg to Deggendorf | 378.90 mi (609.78 km) |
| Hardenberg to Delbruck | 99.42 mi (159.99 km) |
