| Ronkonkoma to Cocentaina | 3,746.12 mi (6,028.80 km) |
| Ronkonkoma to Coin | 3,601.25 mi (5,795.64 km) |
| Ronkonkoma to Colindres | 3,469.07 mi (5,582.93 km) |
| Ronkonkoma to Collado-Villalba | 3,518.65 mi (5,662.71 km) |
| Ronkonkoma to Colmenar Viejo | 3,529.49 mi (5,680.17 km) |
| Ronkonkoma to Colmenarejo | 3,520.30 mi (5,665.38 km) |
| Ronkonkoma to Conil de la Frontera | 3,547.65 mi (5,709.39 km) |
| Ronkonkoma to Consuegra | 3,571.96 mi (5,748.52 km) |
| Ronkonkoma to Corbera de Llobregat | 3,775.44 mi (6,075.98 km) |
| Ronkonkoma to Cordoba | 3,562.24 mi (5,732.87 km) |
| Ronkonkoma to Coria del Rio | 3,518.02 mi (5,661.70 km) |
| Ronkonkoma to Crevillente | 3,744.03 mi (6,025.44 km) |
| Ronkonkoma to Cuarte de Huerva | 3,637.57 mi (5,854.10 km) |
| Ronkonkoma to Cubellas | 3,769.77 mi (6,066.86 km) |
| Ronkonkoma to Cuellar | 3,482.53 mi (5,604.59 km) |
