| Ronkonkoma to Celano | 4,279.17 mi (6,886.66 km) |
| Ronkonkoma to Cento | 4,089.06 mi (6,580.71 km) |
| Ronkonkoma to Cepagatti | 4,291.45 mi (6,906.42 km) |
| Ronkonkoma to Ceprano | 4,296.57 mi (6,914.66 km) |
| Ronkonkoma to Cercola | 4,358.22 mi (7,013.87 km) |
| Ronkonkoma to Cerea | 4,070.79 mi (6,551.30 km) |
| Ronkonkoma to Cerese | 4,055.68 mi (6,526.99 km) |
| Ronkonkoma to Cerignola | 4,411.75 mi (7,100.02 km) |
| Ronkonkoma to Cermenate | 3,963.19 mi (6,378.14 km) |
| Ronkonkoma to Cernusco sul Naviglio | 3,979.72 mi (6,404.74 km) |
| Ronkonkoma to Cerreto Guidi | 4,103.94 mi (6,604.66 km) |
| Ronkonkoma to Cerro Maggiore | 3,960.60 mi (6,373.96 km) |
| Ronkonkoma to Certaldo | 4,118.19 mi (6,627.58 km) |
| Ronkonkoma to Cerveteri | 4,217.96 mi (6,788.16 km) |
| Ronkonkoma to Cervia | 4,151.20 mi (6,680.71 km) |
