| Clausthal-Zellerfeld to Casandrino | 773.70 mi (1,245.15 km) |
| Clausthal-Zellerfeld to Casapulla | 765.09 mi (1,231.29 km) |
| Clausthal-Zellerfeld to Casarano | 896.05 mi (1,442.06 km) |
| Clausthal-Zellerfeld to Casatenovo | 424.49 mi (683.15 km) |
| Clausthal-Zellerfeld to Casciana Terme | 572.03 mi (920.59 km) |
| Clausthal-Zellerfeld to Cascina | 561.24 mi (903.23 km) |
| Clausthal-Zellerfeld to Caselle Torinese | 474.10 mi (762.98 km) |
| Clausthal-Zellerfeld to Caserta | 765.67 mi (1,232.23 km) |
| Clausthal-Zellerfeld to Casier | 434.55 mi (699.34 km) |
| Clausthal-Zellerfeld to Casorate Primo | 452.32 mi (727.93 km) |
| Clausthal-Zellerfeld to Casoria | 776.52 mi (1,249.68 km) |
| Clausthal-Zellerfeld to Cassano al Ionio | 878.43 mi (1,413.70 km) |
| Clausthal-Zellerfeld to Cassano d'Adda | 434.93 mi (699.96 km) |
| Clausthal-Zellerfeld to Cassano delle Murge | 813.79 mi (1,309.67 km) |
| Clausthal-Zellerfeld to Cassina de' Pecchi | 436.71 mi (702.82 km) |
