| Boone to Carmona | 4,081.65 mi (6,568.79 km) |
| Boone to Cartagena | 4,308.63 mi (6,934.06 km) |
| Boone to Cartama | 4,153.59 mi (6,684.56 km) |
| Boone to Cartaya | 4,010.61 mi (6,454.46 km) |
| Boone to Caspe | 4,246.92 mi (6,834.75 km) |
| Boone to Cassa de la Selva | 4,363.54 mi (7,022.44 km) |
| Boone to Castalla | 4,293.84 mi (6,910.27 km) |
| Boone to Castellbisbal | 4,334.42 mi (6,975.58 km) |
| Boone to Castelldefels | 4,340.04 mi (6,984.61 km) |
| Boone to Castello de Ampurias | 4,361.72 mi (7,019.50 km) |
| Boone to Castellon de la Plana | 4,283.42 mi (6,893.49 km) |
| Boone to Castilleja de la Cuesta | 4,063.12 mi (6,538.96 km) |
| Boone to Catarroja | 4,282.74 mi (6,892.41 km) |
| Boone to Catral | 4,300.42 mi (6,920.85 km) |
| Boone to Caudete | 4,275.19 mi (6,880.25 km) |
