| Clausthal-Zellerfeld to Cabestany | 718.65 mi (1,156.56 km) |
| Clausthal-Zellerfeld to Cabries | 621.91 mi (1,000.86 km) |
| Clausthal-Zellerfeld to Cachan | 409.70 mi (659.35 km) |
| Clausthal-Zellerfeld to Caen | 503.73 mi (810.67 km) |
| Clausthal-Zellerfeld to Cagnes-sur-Mer | 581.48 mi (935.80 km) |
| Clausthal-Zellerfeld to Cahors | 652.25 mi (1,049.69 km) |
| Clausthal-Zellerfeld to Calais | 370.23 mi (595.83 km) |
| Clausthal-Zellerfeld to Caluire-et-Cuire | 484.25 mi (779.33 km) |
| Clausthal-Zellerfeld to Cambrai | 328.47 mi (528.63 km) |
| Clausthal-Zellerfeld to Canet-en-Roussillon | 715.66 mi (1,151.75 km) |
| Clausthal-Zellerfeld to Cannes | 590.69 mi (950.62 km) |
| Clausthal-Zellerfeld to Canteleu | 438.45 mi (705.62 km) |
| Clausthal-Zellerfeld to Capbreton | 783.81 mi (1,261.42 km) |
| Clausthal-Zellerfeld to Carcassonne | 700.19 mi (1,126.84 km) |
| Clausthal-Zellerfeld to Carmaux | 655.24 mi (1,054.51 km) |
