| Rockford to Campo de Criptana | 4,293.65 mi (6,909.97 km) |
| Rockford to Campos del Puerto | 4,561.85 mi (7,341.59 km) |
| Rockford to Canals | 4,423.02 mi (7,118.17 km) |
| Rockford to Candelaria | 4,085.24 mi (6,574.57 km) |
| Rockford to Canet de Mar | 4,456.57 mi (7,172.16 km) |
| Rockford to Cangas | 3,937.86 mi (6,337.37 km) |
| Rockford to Cangas de Narcea | 4,005.51 mi (6,446.25 km) |
| Rockford to Canovellas | 4,442.75 mi (7,149.92 km) |
| Rockford to Canteras | 4,455.76 mi (7,170.85 km) |
| Rockford to Cantillana | 4,239.74 mi (6,823.20 km) |
| Rockford to Capdepera | 4,568.75 mi (7,352.69 km) |
| Rockford to Carballo | 3,910.01 mi (6,292.55 km) |
| Rockford to Carcagente | 4,422.71 mi (7,117.67 km) |
| Rockford to Cardedeu | 4,445.15 mi (7,153.78 km) |
| Rockford to Carlet | 4,415.44 mi (7,105.97 km) |
