| Effingham to Caldicot | 4,008.44 mi (6,450.96 km) |
| Effingham to Calne | 4,041.95 mi (6,504.88 km) |
| Effingham to Cam | 4,020.36 mi (6,470.15 km) |
| Effingham to Camberley | 4,094.26 mi (6,589.08 km) |
| Effingham to Camborne | 3,945.16 mi (6,349.12 km) |
| Effingham to Cambridge | 4,101.47 mi (6,600.68 km) |
| Effingham to Cambuslang | 3,843.24 mi (6,185.10 km) |
| Effingham to Canford Cliffs | 4,066.42 mi (6,544.27 km) |
| Effingham to Cannock | 4,005.36 mi (6,446.01 km) |
| Effingham to Canterbury | 4,166.58 mi (6,705.46 km) |
| Effingham to Carlisle | 3,911.37 mi (6,294.74 km) |
| Effingham to Carlton Colville | 4,153.53 mi (6,684.46 km) |
| Effingham to Carluke | 3,857.43 mi (6,207.93 km) |
| Effingham to Carnoustie | 3,878.71 mi (6,242.18 km) |
| Effingham to Carshalton | 4,115.68 mi (6,623.55 km) |
