| Round Lake Beach to Cortona | 4,726.41 mi (7,606.42 km) |
| Round Lake Beach to Cosenza | 5,072.54 mi (8,163.46 km) |
| Round Lake Beach to Cossato | 4,480.55 mi (7,210.75 km) |
| Round Lake Beach to Costa Volpino | 4,544.99 mi (7,314.45 km) |
| Round Lake Beach to Creazzo | 4,610.66 mi (7,420.14 km) |
| Round Lake Beach to Crema | 4,548.01 mi (7,319.31 km) |
| Round Lake Beach to Cremona | 4,571.30 mi (7,356.79 km) |
| Round Lake Beach to Crevalcore | 4,632.20 mi (7,454.81 km) |
| Round Lake Beach to Crispiano | 5,051.53 mi (8,129.64 km) |
| Round Lake Beach to Crosia | 5,080.82 mi (8,176.79 km) |
| Round Lake Beach to Crotone | 5,117.07 mi (8,235.13 km) |
| Round Lake Beach to Cuneo | 4,504.01 mi (7,248.50 km) |
| Round Lake Beach to Cuorgne | 4,467.35 mi (7,189.50 km) |
| Round Lake Beach to Cusano Milanino | 4,520.99 mi (7,275.84 km) |
| Round Lake Beach to Cutro | 5,114.07 mi (8,230.30 km) |
