| Clausthal-Zellerfeld to Coudekerque-Branche | 346.35 mi (557.39 km) |
| Clausthal-Zellerfeld to Coueron | 625.92 mi (1,007.33 km) |
| Clausthal-Zellerfeld to Coulommiers | 380.60 mi (612.51 km) |
| Clausthal-Zellerfeld to Courbevoic | 408.72 mi (657.77 km) |
| Clausthal-Zellerfeld to Courcouronnes | 412.58 mi (663.98 km) |
| Clausthal-Zellerfeld to Cournon-d'Auvergne | 529.69 mi (852.45 km) |
| Clausthal-Zellerfeld to Courrieres | 333.42 mi (536.59 km) |
| Clausthal-Zellerfeld to Coutras | 668.59 mi (1,075.99 km) |
| Clausthal-Zellerfeld to Couzeix | 581.36 mi (935.62 km) |
| Clausthal-Zellerfeld to Cran-Gevrier | 450.66 mi (725.27 km) |
| Clausthal-Zellerfeld to Craponne | 490.18 mi (788.86 km) |
| Clausthal-Zellerfeld to Creil | 386.88 mi (622.63 km) |
| Clausthal-Zellerfeld to Crepy-en-Valois | 372.04 mi (598.75 km) |
| Clausthal-Zellerfeld to Crest | 546.27 mi (879.13 km) |
| Clausthal-Zellerfeld to Creteil | 404.77 mi (651.42 km) |
