| Boulder City to Clacton-on-Sea | 5,260.02 mi (8,465.19 km) |
| Boulder City to Clay Cross | 5,116.61 mi (8,234.39 km) |
| Boulder City to Clayton | 5,076.86 mi (8,170.41 km) |
| Boulder City to Clayton le Moors | 5,059.00 mi (8,141.67 km) |
| Boulder City to Cleckheaton | 5,082.34 mi (8,179.23 km) |
| Boulder City to Cleethorpes | 5,143.45 mi (8,277.58 km) |
| Boulder City to Clevedon | 5,144.47 mi (8,279.22 km) |
| Boulder City to Clifton | 5,135.58 mi (8,264.92 km) |
| Boulder City to Clifton | 5,091.15 mi (8,193.42 km) |
| Boulder City to Cliftonville | 5,286.84 mi (8,508.34 km) |
| Boulder City to Clitheroe | 5,054.62 mi (8,134.62 km) |
| Boulder City to Clydebank | 4,905.89 mi (7,895.26 km) |
| Boulder City to Coalville | 5,137.32 mi (8,267.71 km) |
| Boulder City to Coatbridge | 4,919.04 mi (7,916.43 km) |
| Boulder City to Cobham | 5,230.51 mi (8,417.69 km) |
