| Rockford to Crawfordsville (Indiana) | 190.15 mi (306.02 km) |
| Rockford to Crest Hill (Illinois) | 68.18 mi (109.73 km) |
| Rockford to Crestview (Florida) | 807.18 mi (1,299.03 km) |
| Rockford to Crestwood (Illinois) | 80.20 mi (129.06 km) |
| Rockford to Crestwood (Missouri) | 265.00 mi (426.48 km) |
| Rockford to Creve Coeur (Missouri) | 258.91 mi (416.68 km) |
| Rockford to Crofton (Maryland) | 686.16 mi (1,104.28 km) |
| Rockford to Crossville (Tennessee) | 486.35 mi (782.71 km) |
| Rockford to Crowley (Louisiana) | 852.05 mi (1,371.24 km) |
| Rockford to Crowley (Texas) | 808.17 mi (1,300.62 km) |
| Rockford to Crown Point (Indiana) | 105.99 mi (170.58 km) |
| Rockford to Crystal (Minnesota) | 287.97 mi (463.45 km) |
| Rockford to Crystal Lake (Illinois) | 37.33 mi (60.07 km) |
| Rockford to Cudahy (California) | 1,673.68 mi (2,693.53 km) |
| Rockford to Cudahy (Wisconsin) | 77.31 mi (124.42 km) |
