| Rock Island to Cromer | 4,083.41 mi (6,571.61 km) |
| Rock Island to Crosby | 3,906.71 mi (6,287.24 km) |
| Rock Island to Crowborough | 4,104.43 mi (6,605.45 km) |
| Rock Island to Croxley Green | 4,061.87 mi (6,536.96 km) |
| Rock Island to Croydon | 4,083.67 mi (6,572.02 km) |
| Rock Island to Cudworth | 3,963.30 mi (6,378.32 km) |
| Rock Island to Culcheth | 3,926.68 mi (6,319.39 km) |
| Rock Island to Cullercoats | 3,917.44 mi (6,304.50 km) |
| Rock Island to Cumbernauld | 3,799.91 mi (6,115.36 km) |
| Rock Island to Cumnock | 3,804.22 mi (6,122.30 km) |
| Rock Island to Cupar | 3,823.80 mi (6,153.81 km) |
| Rock Island to Cwmbran | 3,964.22 mi (6,379.79 km) |
| Rock Island to Dagenham | 4,087.51 mi (6,578.21 km) |
| Rock Island to Dalkeith | 3,834.31 mi (6,170.72 km) |
| Rock Island to Darfield | 3,965.81 mi (6,382.35 km) |
