| Harmanli to Cottbus | 869.48 mi (1,399.29 km) |
| Harmanli to Crailsheim | 910.73 mi (1,465.68 km) |
| Harmanli to Cremlingen | 1,007.22 mi (1,620.96 km) |
| Harmanli to Crimmitschau | 887.22 mi (1,427.85 km) |
| Harmanli to Cuxhaven | 1,140.65 mi (1,835.71 km) |
| Harmanli to Dachau | 827.97 mi (1,332.50 km) |
| Harmanli to Dallgow-Doberitz | 945.68 mi (1,521.93 km) |
| Harmanli to Damme | 1,101.43 mi (1,772.58 km) |
| Harmanli to Darmstadt | 990.58 mi (1,594.18 km) |
| Harmanli to Dassel | 1,021.21 mi (1,643.47 km) |
| Harmanli to Datteln | 1,100.00 mi (1,770.28 km) |
| Harmanli to Dautphe | 1,027.18 mi (1,653.08 km) |
| Harmanli to Deggendorf | 786.39 mi (1,265.58 km) |
| Harmanli to Delbruck | 1,059.47 mi (1,705.05 km) |
| Harmanli to Delitzsch | 919.97 mi (1,480.54 km) |
