| Rockford to Camarillo (California) | 1,707.99 mi (2,748.74 km) |
| Rockford to Camas (Washington) | 1,664.04 mi (2,678.01 km) |
| Rockford to Cambridge (Maryland) | 728.72 mi (1,172.77 km) |
| Rockford to Cambridge (Massachusetts) | 915.15 mi (1,472.79 km) |
| Rockford to Camden (Arkansas) | 634.81 mi (1,021.63 km) |
| Rockford to Camden (New Jersey) | 743.30 mi (1,196.22 km) |
| Rockford to Cameron Park (California) | 1,686.17 mi (2,713.64 km) |
| Rockford to Camp Pendleton South (California) | 1,658.93 mi (2,669.78 km) |
| Rockford to Camp Springs (Maryland) | 680.17 mi (1,094.62 km) |
| Rockford to Camp Verde (Arizona) | 1,338.07 mi (2,153.42 km) |
| Rockford to Campbell (California) | 1,768.75 mi (2,846.54 km) |
| Rockford to Campbellsville (Kentucky) | 392.55 mi (631.74 km) |
| Rockford to Campton Hills (Illinois) | 39.49 mi (63.55 km) |
| Rockford to Canby (Oregon) | 1,678.25 mi (2,700.88 km) |
| Rockford to Candelaria (Puerto Rico) | 2,124.08 mi (3,418.37 km) |
