| Boussu to Cartagena | 917.42 mi (1,476.44 km) |
| Boussu to Cartama | 1,036.08 mi (1,667.41 km) |
| Boussu to Cartaya | 1,057.12 mi (1,701.27 km) |
| Boussu to Caspe | 661.60 mi (1,064.75 km) |
| Boussu to Cassa de la Selva | 591.95 mi (952.66 km) |
| Boussu to Castalla | 846.51 mi (1,362.32 km) |
| Boussu to Castellbisbal | 624.88 mi (1,005.65 km) |
| Boussu to Castelldefels | 638.40 mi (1,027.40 km) |
| Boussu to Castello de Ampurias | 565.87 mi (910.68 km) |
| Boussu to Castellon de la Plana | 745.43 mi (1,199.66 km) |
| Boussu to Castilleja de la Cuesta | 1,024.20 mi (1,648.28 km) |
| Boussu to Catarroja | 789.01 mi (1,269.78 km) |
| Boussu to Catral | 877.58 mi (1,412.33 km) |
| Boussu to Caudete | 843.44 mi (1,357.38 km) |
| Boussu to Cehegin | 895.82 mi (1,441.68 km) |
