| Efringen-Kirchen to Cosenza | 722.12 mi (1,162.13 km) |
| Efringen-Kirchen to Cossato | 147.12 mi (236.76 km) |
| Efringen-Kirchen to Costa Volpino | 174.02 mi (280.05 km) |
| Efringen-Kirchen to Creazzo | 236.80 mi (381.09 km) |
| Efringen-Kirchen to Crema | 187.46 mi (301.69 km) |
| Efringen-Kirchen to Cremona | 210.21 mi (338.29 km) |
| Efringen-Kirchen to Crevalcore | 265.70 mi (427.60 km) |
| Efringen-Kirchen to Crispiano | 682.75 mi (1,098.78 km) |
| Efringen-Kirchen to Crosia | 722.97 mi (1,163.51 km) |
| Efringen-Kirchen to Crotone | 760.98 mi (1,224.68 km) |
| Efringen-Kirchen to Cuneo | 226.10 mi (363.87 km) |
| Efringen-Kirchen to Cuorgne | 156.61 mi (252.04 km) |
| Efringen-Kirchen to Cusano Milanino | 164.49 mi (264.73 km) |
| Efringen-Kirchen to Cutro | 759.64 mi (1,222.52 km) |
| Efringen-Kirchen to Cutrofiano | 741.51 mi (1,193.34 km) |
