| Rockford to Cernavoda | 5,304.22 mi (8,536.32 km) |
| Rockford to Chitila | 5,226.35 mi (8,411.00 km) |
| Rockford to Cisnadie | 5,104.42 mi (8,214.77 km) |
| Rockford to Cluj-Napoca | 5,033.95 mi (8,101.37 km) |
| Rockford to Codlea | 5,149.09 mi (8,286.66 km) |
| Rockford to Comanesti | 5,146.31 mi (8,282.18 km) |
| Rockford to Comarnic | 5,177.63 mi (8,332.59 km) |
| Rockford to Constanta | 5,332.98 mi (8,582.61 km) |
| Rockford to Corabia | 5,211.70 mi (8,387.43 km) |
| Rockford to Costesti | 5,180.60 mi (8,337.36 km) |
| Rockford to Covasna | 5,166.41 mi (8,314.54 km) |
| Rockford to Craiova | 5,160.24 mi (8,304.60 km) |
| Rockford to Cristuru Secuiesc | 5,106.03 mi (8,217.37 km) |
| Rockford to Cugir | 5,071.10 mi (8,161.14 km) |
| Rockford to Cumpana | 5,333.16 mi (8,582.89 km) |
