| Hartsville to Cortona | 4,913.51 mi (7,907.53 km) |
| Hartsville to Cosenza | 5,250.96 mi (8,450.60 km) |
| Hartsville to Cossato | 4,670.25 mi (7,516.05 km) |
| Hartsville to Costa Volpino | 4,741.62 mi (7,630.90 km) |
| Hartsville to Creazzo | 4,809.41 mi (7,739.99 km) |
| Hartsville to Crema | 4,740.71 mi (7,629.44 km) |
| Hartsville to Cremona | 4,763.59 mi (7,666.27 km) |
| Hartsville to Crevalcore | 4,825.22 mi (7,765.45 km) |
| Hartsville to Crispiano | 5,240.29 mi (8,433.43 km) |
| Hartsville to Crosia | 5,262.44 mi (8,469.08 km) |
| Hartsville to Crotone | 5,297.27 mi (8,525.14 km) |
| Hartsville to Cuneo | 4,684.71 mi (7,539.30 km) |
| Hartsville to Cuorgne | 4,654.53 mi (7,490.74 km) |
| Hartsville to Cusano Milanino | 4,713.41 mi (7,585.49 km) |
| Hartsville to Cutro | 5,293.54 mi (8,519.13 km) |
