| Rockville to Caldicot | 3,552.53 mi (5,717.25 km) |
| Rockville to Calne | 3,586.23 mi (5,771.47 km) |
| Rockville to Cam | 3,566.08 mi (5,739.05 km) |
| Rockville to Camberley | 3,640.22 mi (5,858.36 km) |
| Rockville to Camborne | 3,473.43 mi (5,589.95 km) |
| Rockville to Cambridge | 3,656.18 mi (5,884.06 km) |
| Rockville to Cambuslang | 3,421.73 mi (5,506.74 km) |
| Rockville to Canford Cliffs | 3,604.96 mi (5,801.63 km) |
| Rockville to Cannock | 3,559.90 mi (5,729.11 km) |
| Rockville to Canterbury | 3,715.85 mi (5,980.09 km) |
| Rockville to Carlisle | 3,483.36 mi (5,605.93 km) |
| Rockville to Carlton Colville | 3,713.49 mi (5,976.28 km) |
| Rockville to Carluke | 3,435.65 mi (5,529.15 km) |
| Rockville to Carnoustie | 3,465.88 mi (5,577.80 km) |
| Rockville to Carshalton | 3,663.04 mi (5,895.10 km) |
