| River Forest to Clacton-on-Sea | 3,992.89 mi (6,425.94 km) |
| River Forest to Clay Cross | 3,853.80 mi (6,202.09 km) |
| River Forest to Clayton | 3,820.41 mi (6,148.36 km) |
| River Forest to Clayton le Moors | 3,799.55 mi (6,114.78 km) |
| River Forest to Cleckheaton | 3,825.59 mi (6,156.69 km) |
| River Forest to Cleethorpes | 3,893.25 mi (6,265.59 km) |
| River Forest to Clevedon | 3,851.64 mi (6,198.61 km) |
| River Forest to Clifton | 3,870.51 mi (6,228.98 km) |
| River Forest to Clifton | 3,841.03 mi (6,181.54 km) |
| River Forest to Cliftonville | 4,016.00 mi (6,463.12 km) |
| River Forest to Clitheroe | 3,796.46 mi (6,109.81 km) |
| River Forest to Clydebank | 3,667.07 mi (5,901.58 km) |
| River Forest to Coalville | 3,868.84 mi (6,226.30 km) |
| River Forest to Coatbridge | 3,681.45 mi (5,924.72 km) |
| River Forest to Cobham | 3,949.01 mi (6,355.32 km) |
