| Rockford to Cividale del Friuli | 4,703.01 mi (7,568.77 km) |
| Rockford to Civita Castellana | 4,829.61 mi (7,772.51 km) |
| Rockford to Civitanova Marche | 4,837.04 mi (7,784.47 km) |
| Rockford to Civitavecchia | 4,814.03 mi (7,747.44 km) |
| Rockford to Civitella in Val di Chiana | 4,753.53 mi (7,650.07 km) |
| Rockford to Clusone | 4,580.33 mi (7,371.32 km) |
| Rockford to Coccaglio | 4,594.75 mi (7,394.54 km) |
| Rockford to Codigoro | 4,707.91 mi (7,576.64 km) |
| Rockford to Codogno | 4,601.00 mi (7,404.60 km) |
| Rockford to Codroipo | 4,691.97 mi (7,550.99 km) |
| Rockford to Cogoleto | 4,591.58 mi (7,389.43 km) |
| Rockford to Colle di Val d'Elsa | 4,731.37 mi (7,614.40 km) |
| Rockford to Colle Salvetti | 4,697.23 mi (7,559.47 km) |
| Rockford to Collecchio | 4,638.08 mi (7,464.27 km) |
| Rockford to Colleferro | 4,878.40 mi (7,851.03 km) |
