| Effingham to Clacton-on-Sea | 4,153.25 mi (6,684.02 km) |
| Effingham to Clay Cross | 4,015.40 mi (6,462.15 km) |
| Effingham to Clayton | 3,983.06 mi (6,410.11 km) |
| Effingham to Clayton le Moors | 3,961.86 mi (6,376.01 km) |
| Effingham to Cleckheaton | 3,988.17 mi (6,418.34 km) |
| Effingham to Cleethorpes | 4,056.45 mi (6,528.23 km) |
| Effingham to Clevedon | 4,008.66 mi (6,451.32 km) |
| Effingham to Clifton | 4,031.71 mi (6,488.40 km) |
| Effingham to Clifton | 4,004.47 mi (6,444.57 km) |
| Effingham to Cliftonville | 4,175.71 mi (6,720.16 km) |
| Effingham to Clitheroe | 3,958.97 mi (6,371.35 km) |
| Effingham to Clydebank | 3,832.80 mi (6,168.30 km) |
| Effingham to Coalville | 4,029.55 mi (6,484.93 km) |
| Effingham to Coatbridge | 3,847.28 mi (6,191.59 km) |
| Effingham to Cobham | 4,107.40 mi (6,610.22 km) |
