| Clausthal-Zellerfeld to Cosenza | 909.41 mi (1,463.55 km) |
| Clausthal-Zellerfeld to Cossato | 442.18 mi (711.62 km) |
| Clausthal-Zellerfeld to Costa Volpino | 412.93 mi (664.55 km) |
| Clausthal-Zellerfeld to Creazzo | 436.47 mi (702.43 km) |
| Clausthal-Zellerfeld to Crema | 445.84 mi (717.50 km) |
| Clausthal-Zellerfeld to Cremona | 461.18 mi (742.19 km) |
| Clausthal-Zellerfeld to Crevalcore | 491.18 mi (790.47 km) |
| Clausthal-Zellerfeld to Crispiano | 840.61 mi (1,352.83 km) |
| Clausthal-Zellerfeld to Crosia | 899.89 mi (1,448.23 km) |
| Clausthal-Zellerfeld to Crotone | 937.43 mi (1,508.66 km) |
| Clausthal-Zellerfeld to Cuneo | 528.55 mi (850.62 km) |
| Clausthal-Zellerfeld to Cuorgne | 459.85 mi (740.05 km) |
| Clausthal-Zellerfeld to Cusano Milanino | 435.35 mi (700.63 km) |
| Clausthal-Zellerfeld to Cutro | 938.54 mi (1,510.43 km) |
| Clausthal-Zellerfeld to Cutrofiano | 890.32 mi (1,432.83 km) |
