| Ronkonkoma to Clacton-on-Sea | 3,466.98 mi (5,579.56 km) |
| Ronkonkoma to Clay Cross | 3,336.25 mi (5,369.17 km) |
| Ronkonkoma to Clayton | 3,309.09 mi (5,325.47 km) |
| Ronkonkoma to Clayton le Moors | 3,286.69 mi (5,289.41 km) |
| Ronkonkoma to Cleckheaton | 3,313.84 mi (5,333.11 km) |
| Ronkonkoma to Cleethorpes | 3,384.00 mi (5,446.02 km) |
| Ronkonkoma to Clevedon | 3,310.47 mi (5,327.68 km) |
| Ronkonkoma to Clifton | 3,350.57 mi (5,392.23 km) |
| Ronkonkoma to Clifton | 3,333.84 mi (5,365.30 km) |
| Ronkonkoma to Cliftonville | 3,486.44 mi (5,610.88 km) |
| Ronkonkoma to Clitheroe | 3,284.73 mi (5,286.26 km) |
| Ronkonkoma to Clydebank | 3,175.85 mi (5,111.04 km) |
| Ronkonkoma to Coalville | 3,346.31 mi (5,385.37 km) |
| Ronkonkoma to Coatbridge | 3,190.57 mi (5,134.73 km) |
| Ronkonkoma to Cobham | 3,413.47 mi (5,493.45 km) |
