| Ronkonkoma to Cromer | 3,448.88 mi (5,550.43 km) |
| Ronkonkoma to Crosby | 3,265.83 mi (5,255.84 km) |
| Ronkonkoma to Crowborough | 3,442.67 mi (5,540.44 km) |
| Ronkonkoma to Croxley Green | 3,405.31 mi (5,480.32 km) |
| Ronkonkoma to Croydon | 3,424.82 mi (5,511.72 km) |
| Ronkonkoma to Cudworth | 3,328.51 mi (5,356.71 km) |
| Ronkonkoma to Culcheth | 3,286.85 mi (5,289.67 km) |
| Ronkonkoma to Cullercoats | 3,302.34 mi (5,314.60 km) |
| Ronkonkoma to Cumbernauld | 3,190.68 mi (5,134.90 km) |
| Ronkonkoma to Cumnock | 3,187.18 mi (5,129.27 km) |
| Ronkonkoma to Cupar | 3,222.60 mi (5,186.27 km) |
| Ronkonkoma to Cwmbran | 3,299.46 mi (5,309.96 km) |
| Ronkonkoma to Dagenham | 3,431.58 mi (5,522.59 km) |
| Ronkonkoma to Dalkeith | 3,226.84 mi (5,193.10 km) |
| Ronkonkoma to Darfield | 3,330.58 mi (5,360.05 km) |
