| Rockford to Clacton-on-Sea | 4,022.20 mi (6,473.11 km) |
| Rockford to Clay Cross | 3,882.48 mi (6,248.25 km) |
| Rockford to Clayton | 3,848.50 mi (6,193.56 km) |
| Rockford to Clayton le Moors | 3,827.84 mi (6,160.31 km) |
| Rockford to Cleckheaton | 3,853.71 mi (6,201.95 km) |
| Rockford to Cleethorpes | 3,920.99 mi (6,310.22 km) |
| Rockford to Clevedon | 3,882.84 mi (6,248.82 km) |
| Rockford to Clifton | 3,899.41 mi (6,275.50 km) |
| Rockford to Clifton | 3,868.65 mi (6,225.99 km) |
| Rockford to Cliftonville | 4,045.66 mi (6,510.86 km) |
| Rockford to Clitheroe | 3,824.64 mi (6,155.16 km) |
| Rockford to Clydebank | 3,693.39 mi (5,943.93 km) |
| Rockford to Coalville | 3,898.02 mi (6,273.26 km) |
| Rockford to Coatbridge | 3,707.70 mi (5,966.97 km) |
| Rockford to Cobham | 3,979.43 mi (6,404.28 km) |
