| Harmanli to Civita Castellana | 691.14 mi (1,112.29 km) |
| Harmanli to Civitanova Marche | 625.21 mi (1,006.18 km) |
| Harmanli to Civitavecchia | 723.06 mi (1,163.66 km) |
| Harmanli to Civitella in Val di Chiana | 726.83 mi (1,169.72 km) |
| Harmanli to Clusone | 837.83 mi (1,348.35 km) |
| Harmanli to Coccaglio | 831.68 mi (1,338.45 km) |
| Harmanli to Codigoro | 719.53 mi (1,157.98 km) |
| Harmanli to Codogno | 839.50 mi (1,351.05 km) |
| Harmanli to Codroipo | 699.38 mi (1,125.55 km) |
| Harmanli to Cogoleto | 884.23 mi (1,423.02 km) |
| Harmanli to Colle di Val d'Elsa | 756.01 mi (1,216.69 km) |
| Harmanli to Colle Salvetti | 789.24 mi (1,270.16 km) |
| Harmanli to Collecchio | 810.34 mi (1,304.12 km) |
| Harmanli to Colleferro | 662.76 mi (1,066.61 km) |
| Harmanli to Collegno | 941.58 mi (1,515.33 km) |
