| Valley to Clacton-on-Sea | 4,330.30 mi (6,968.95 km) |
| Valley to Clay Cross | 4,198.61 mi (6,757.01 km) |
| Valley to Clayton | 4,170.70 mi (6,712.09 km) |
| Valley to Clayton le Moors | 4,148.44 mi (6,676.26 km) |
| Valley to Cleckheaton | 4,175.50 mi (6,719.82 km) |
| Valley to Cleethorpes | 4,245.48 mi (6,832.44 km) |
| Valley to Clevedon | 4,174.63 mi (6,718.42 km) |
| Valley to Clifton | 4,213.21 mi (6,780.50 km) |
| Valley to Clifton | 4,194.97 mi (6,751.15 km) |
| Valley to Cliftonville | 4,350.06 mi (7,000.75 km) |
| Valley to Clitheroe | 4,146.34 mi (6,672.89 km) |
| Valley to Clydebank | 4,034.20 mi (6,492.41 km) |
| Valley to Coalville | 4,209.19 mi (6,774.03 km) |
| Valley to Coatbridge | 4,048.89 mi (6,516.07 km) |
| Valley to Cobham | 4,277.42 mi (6,883.84 km) |
