| Rock Island to Caldicot | 3,976.54 mi (6,399.62 km) |
| Rock Island to Calne | 4,009.78 mi (6,453.12 km) |
| Rock Island to Cam | 3,987.66 mi (6,417.51 km) |
| Rock Island to Camberley | 4,061.07 mi (6,535.66 km) |
| Rock Island to Camborne | 3,920.97 mi (6,310.20 km) |
| Rock Island to Cambridge | 4,064.32 mi (6,540.89 km) |
| Rock Island to Cambuslang | 3,797.33 mi (6,111.21 km) |
| Rock Island to Canford Cliffs | 4,036.77 mi (6,496.55 km) |
| Rock Island to Cannock | 3,968.79 mi (6,387.15 km) |
| Rock Island to Canterbury | 4,131.52 mi (6,649.03 km) |
| Rock Island to Carlisle | 3,867.78 mi (6,224.59 km) |
| Rock Island to Carlton Colville | 4,113.80 mi (6,620.52 km) |
| Rock Island to Carluke | 3,811.54 mi (6,134.08 km) |
| Rock Island to Carnoustie | 3,829.04 mi (6,162.25 km) |
| Rock Island to Carshalton | 4,081.74 mi (6,568.93 km) |
