| Rockford to Cortona | 4,770.27 mi (7,677.00 km) |
| Rockford to Cosenza | 5,116.84 mi (8,234.76 km) |
| Rockford to Cossato | 4,524.33 mi (7,281.20 km) |
| Rockford to Costa Volpino | 4,588.25 mi (7,384.08 km) |
| Rockford to Creazzo | 4,653.74 mi (7,489.47 km) |
| Rockford to Crema | 4,591.55 mi (7,389.38 km) |
| Rockford to Cremona | 4,614.86 mi (7,426.90 km) |
| Rockford to Crevalcore | 4,675.68 mi (7,524.79 km) |
| Rockford to Crispiano | 5,095.14 mi (8,199.84 km) |
| Rockford to Crosia | 5,124.91 mi (8,247.75 km) |
| Rockford to Crotone | 5,161.24 mi (8,306.22 km) |
| Rockford to Cuneo | 4,548.37 mi (7,319.90 km) |
| Rockford to Cuorgne | 4,511.30 mi (7,260.23 km) |
| Rockford to Cusano Milanino | 4,564.56 mi (7,345.96 km) |
| Rockford to Cutro | 5,158.29 mi (8,301.47 km) |
