| Effingham to Cromer | 4,124.33 mi (6,637.47 km) |
| Effingham to Crosby | 3,945.12 mi (6,349.06 km) |
| Effingham to Crowborough | 4,137.69 mi (6,658.97 km) |
| Effingham to Croxley Green | 4,096.48 mi (6,592.65 km) |
| Effingham to Croydon | 4,117.70 mi (6,626.79 km) |
| Effingham to Cudworth | 4,003.65 mi (6,443.25 km) |
| Effingham to Culcheth | 3,965.47 mi (6,381.81 km) |
| Effingham to Cullercoats | 3,962.94 mi (6,377.74 km) |
| Effingham to Cumbernauld | 3,846.44 mi (6,190.24 km) |
| Effingham to Cumnock | 3,848.69 mi (6,193.87 km) |
| Effingham to Cupar | 3,872.55 mi (6,232.27 km) |
| Effingham to Cwmbran | 3,996.05 mi (6,431.02 km) |
| Effingham to Dagenham | 4,122.40 mi (6,634.36 km) |
| Effingham to Dalkeith | 3,881.46 mi (6,246.61 km) |
| Effingham to Darfield | 4,006.05 mi (6,447.11 km) |
