| Ronkonkoma to Cervignano del Friuli | 4,139.94 mi (6,662.59 km) |
| Ronkonkoma to Cesa | 4,349.39 mi (6,999.67 km) |
| Ronkonkoma to Cesano Maderno | 3,968.05 mi (6,385.95 km) |
| Ronkonkoma to Cesena | 4,150.46 mi (6,679.52 km) |
| Ronkonkoma to Cesenatico | 4,154.85 mi (6,686.59 km) |
| Ronkonkoma to Cetraro | 4,480.26 mi (7,210.28 km) |
| Ronkonkoma to Cherasco | 3,943.39 mi (6,346.28 km) |
| Ronkonkoma to Chiampo | 4,062.16 mi (6,537.41 km) |
| Ronkonkoma to Chiaravalle | 4,216.04 mi (6,785.06 km) |
| Ronkonkoma to Chiari | 4,003.26 mi (6,442.63 km) |
| Ronkonkoma to Chiavari | 4,018.16 mi (6,466.60 km) |
| Ronkonkoma to Chieri | 3,930.07 mi (6,324.84 km) |
| Ronkonkoma to Chieti | 4,296.42 mi (6,914.41 km) |
| Ronkonkoma to Chioggia | 4,115.50 mi (6,623.26 km) |
| Ronkonkoma to Chiusi | 4,176.05 mi (6,720.71 km) |
