| Efringen-Kirchen to Cartagena | 818.32 mi (1,316.96 km) |
| Efringen-Kirchen to Cartama | 978.23 mi (1,574.30 km) |
| Efringen-Kirchen to Cartaya | 1,034.06 mi (1,664.16 km) |
| Efringen-Kirchen to Caspe | 580.29 mi (933.89 km) |
| Efringen-Kirchen to Cassa de la Selva | 459.89 mi (740.12 km) |
| Efringen-Kirchen to Castalla | 750.22 mi (1,207.37 km) |
| Efringen-Kirchen to Castellbisbal | 507.43 mi (816.64 km) |
| Efringen-Kirchen to Castelldefels | 519.29 mi (835.72 km) |
| Efringen-Kirchen to Castello de Ampurias | 432.59 mi (696.19 km) |
| Efringen-Kirchen to Castellon de la Plana | 650.87 mi (1,047.47 km) |
| Efringen-Kirchen to Castilleja de la Cuesta | 989.42 mi (1,592.31 km) |
| Efringen-Kirchen to Catarroja | 695.28 mi (1,118.94 km) |
| Efringen-Kirchen to Catral | 779.96 mi (1,255.22 km) |
| Efringen-Kirchen to Caudete | 752.80 mi (1,211.51 km) |
| Efringen-Kirchen to Cehegin | 811.99 mi (1,306.77 km) |
