| Harmanli to Chitila | 177.96 mi (286.40 km) |
| Harmanli to Cisnadie | 275.29 mi (443.04 km) |
| Harmanli to Cluj-Napoca | 352.98 mi (568.07 km) |
| Harmanli to Codlea | 261.03 mi (420.09 km) |
| Harmanli to Comanesti | 311.86 mi (501.89 km) |
| Harmanli to Comarnic | 229.62 mi (369.54 km) |
| Harmanli to Constanta | 207.00 mi (333.13 km) |
| Harmanli to Corabia | 145.50 mi (234.16 km) |
| Harmanli to Costesti | 195.90 mi (315.26 km) |
| Harmanli to Covasna | 270.93 mi (436.03 km) |
| Harmanli to Craiova | 196.28 mi (315.88 km) |
| Harmanli to Cristuru Secuiesc | 304.17 mi (489.51 km) |
| Harmanli to Cugir | 298.20 mi (479.90 km) |
| Harmanli to Cumpana | 201.65 mi (324.53 km) |
| Harmanli to Curtea de Arges | 229.78 mi (369.80 km) |
