| Harmanli to Corinth (Mississippi) | 5,699.27 mi (9,172.09 km) |
| Harmanli to Corinth (Texas) | 6,113.86 mi (9,839.30 km) |
| Harmanli to Cornelius (North Carolina) | 5,369.15 mi (8,640.82 km) |
| Harmanli to Cornelius (Oregon) | 6,098.72 mi (9,814.94 km) |
| Harmanli to Corning (New York) | 4,908.98 mi (7,900.24 km) |
| Harmanli to Corona (California) | 6,710.56 mi (10,799.60 km) |
| Harmanli to Coronado (California) | 6,773.95 mi (10,901.62 km) |
| Harmanli to Corpus Christi (Texas) | 6,418.06 mi (10,328.87 km) |
| Harmanli to Corsicana (Texas) | 6,149.07 mi (9,895.96 km) |
| Harmanli to Cortland (New York) | 4,854.50 mi (7,812.56 km) |
| Harmanli to Corvallis (Oregon) | 6,163.54 mi (9,919.26 km) |
| Harmanli to Coshocton (Ohio) | 5,181.92 mi (8,339.49 km) |
| Harmanli to Costa Mesa (California) | 6,731.52 mi (10,833.34 km) |
| Harmanli to Coto de Caza (California) | 6,727.53 mi (10,826.91 km) |
| Harmanli to Cottage Grove (Minnesota) | 5,354.23 mi (8,616.80 km) |
