| Grefrath to Cosenza | 958.96 mi (1,543.30 km) |
| Grefrath to Cossato | 407.29 mi (655.47 km) |
| Grefrath to Costa Volpino | 417.26 mi (671.51 km) |
| Grefrath to Creazzo | 464.85 mi (748.10 km) |
| Grefrath to Crema | 439.97 mi (708.06 km) |
| Grefrath to Cremona | 460.89 mi (741.74 km) |
| Grefrath to Crevalcore | 508.23 mi (817.92 km) |
| Grefrath to Crispiano | 905.60 mi (1,457.42 km) |
| Grefrath to Crosia | 955.31 mi (1,537.42 km) |
| Grefrath to Crotone | 993.59 mi (1,599.02 km) |
| Grefrath to Cuneo | 483.65 mi (778.35 km) |
| Grefrath to Cuorgne | 415.22 mi (668.24 km) |
| Grefrath to Cusano Milanino | 420.40 mi (676.57 km) |
| Grefrath to Cutro | 993.30 mi (1,598.57 km) |
| Grefrath to Cutrofiano | 960.82 mi (1,546.28 km) |
