| Knokke-Heist to Cartagena | 972.06 mi (1,564.37 km) |
| Knokke-Heist to Cartama | 1,083.13 mi (1,743.13 km) |
| Knokke-Heist to Cartaya | 1,097.35 mi (1,766.01 km) |
| Knokke-Heist to Caspe | 715.97 mi (1,152.24 km) |
| Knokke-Heist to Cassa de la Selva | 653.37 mi (1,051.49 km) |
| Knokke-Heist to Castalla | 901.23 mi (1,450.39 km) |
| Knokke-Heist to Castellbisbal | 684.38 mi (1,101.41 km) |
| Knokke-Heist to Castelldefels | 697.95 mi (1,123.24 km) |
| Knokke-Heist to Castello de Ampurias | 627.67 mi (1,010.13 km) |
| Knokke-Heist to Castellon de la Plana | 800.77 mi (1,288.71 km) |
| Knokke-Heist to Castilleja de la Cuesta | 1,067.00 mi (1,717.17 km) |
| Knokke-Heist to Catarroja | 843.83 mi (1,358.01 km) |
| Knokke-Heist to Catral | 932.27 mi (1,500.35 km) |
| Knokke-Heist to Caudete | 897.34 mi (1,444.14 km) |
| Knokke-Heist to Cehegin | 948.26 mi (1,526.08 km) |
