| Middle Island to Carmona | 3,522.27 mi (5,668.55 km) |
| Middle Island to Cartagena | 3,745.48 mi (6,027.76 km) |
| Middle Island to Cartama | 3,595.04 mi (5,785.65 km) |
| Middle Island to Cartaya | 3,452.94 mi (5,556.96 km) |
| Middle Island to Caspe | 3,678.38 mi (5,919.78 km) |
| Middle Island to Cassa de la Selva | 3,793.66 mi (6,105.31 km) |
| Middle Island to Castalla | 3,728.88 mi (6,001.06 km) |
| Middle Island to Castellbisbal | 3,765.05 mi (6,059.26 km) |
| Middle Island to Castelldefels | 3,770.82 mi (6,068.55 km) |
| Middle Island to Castello de Ampurias | 3,791.58 mi (6,101.96 km) |
| Middle Island to Castellon de la Plana | 3,716.24 mi (5,980.72 km) |
| Middle Island to Castilleja de la Cuesta | 3,504.27 mi (5,639.58 km) |
| Middle Island to Catarroja | 3,716.49 mi (5,981.11 km) |
| Middle Island to Catral | 3,736.22 mi (6,012.86 km) |
| Middle Island to Caudete | 3,710.25 mi (5,971.07 km) |
