| Rockford to Corato | 5,037.36 mi (8,106.85 km) |
| Rockford to Corbetta | 4,557.65 mi (7,334.83 km) |
| Rockford to Corciano | 4,788.01 mi (7,705.55 km) |
| Rockford to Cordenons | 4,680.59 mi (7,532.67 km) |
| Rockford to Cori | 4,878.22 mi (7,850.74 km) |
| Rockford to Coriano | 4,764.01 mi (7,666.93 km) |
| Rockford to Corigliano Calabro | 5,113.50 mi (8,229.39 km) |
| Rockford to Corleone | 5,065.45 mi (8,152.06 km) |
| Rockford to Cormano | 4,563.92 mi (7,344.92 km) |
| Rockford to Cornaredo | 4,560.81 mi (7,339.91 km) |
| Rockford to Cornate d'Adda | 4,571.40 mi (7,356.95 km) |
| Rockford to Cornedo Vicentino | 4,645.11 mi (7,475.59 km) |
| Rockford to Correggio | 4,659.17 mi (7,498.22 km) |
| Rockford to Corridonia | 4,830.88 mi (7,774.55 km) |
| Rockford to Corsico | 4,566.80 mi (7,349.56 km) |
