| Ronkonkoma to Carmona | 3,532.99 mi (5,685.80 km) |
| Ronkonkoma to Cartagena | 3,756.28 mi (6,045.14 km) |
| Ronkonkoma to Cartama | 3,605.74 mi (5,802.88 km) |
| Ronkonkoma to Cartaya | 3,463.62 mi (5,574.16 km) |
| Ronkonkoma to Caspe | 3,689.29 mi (5,937.33 km) |
| Ronkonkoma to Cassa de la Selva | 3,804.59 mi (6,122.90 km) |
| Ronkonkoma to Castalla | 3,739.72 mi (6,018.50 km) |
| Ronkonkoma to Castellbisbal | 3,775.97 mi (6,076.84 km) |
| Ronkonkoma to Castelldefels | 3,781.74 mi (6,086.12 km) |
| Ronkonkoma to Castello de Ampurias | 3,802.52 mi (6,119.56 km) |
| Ronkonkoma to Castellon de la Plana | 3,727.12 mi (5,998.23 km) |
| Ronkonkoma to Castilleja de la Cuesta | 3,514.98 mi (5,656.82 km) |
| Ronkonkoma to Catarroja | 3,727.35 mi (5,998.59 km) |
| Ronkonkoma to Catral | 3,747.04 mi (6,030.28 km) |
| Ronkonkoma to Caudete | 3,721.08 mi (5,988.51 km) |
