| Clausthal-Zellerfeld to Castelfiorentino | 567.66 mi (913.57 km) |
| Clausthal-Zellerfeld to Castelfranco di Sopra | 568.11 mi (914.28 km) |
| Clausthal-Zellerfeld to Castelfranco di Sotto | 560.33 mi (901.76 km) |
| Clausthal-Zellerfeld to Castelfranco Emilia | 499.13 mi (803.28 km) |
| Clausthal-Zellerfeld to Castelfranco Veneto | 430.29 mi (692.48 km) |
| Clausthal-Zellerfeld to Castellabate | 826.16 mi (1,329.57 km) |
| Clausthal-Zellerfeld to Castellammare del Golfo | 959.96 mi (1,544.91 km) |
| Clausthal-Zellerfeld to Castellammare di Stabia | 792.44 mi (1,275.31 km) |
| Clausthal-Zellerfeld to Castellamonte | 459.61 mi (739.68 km) |
| Clausthal-Zellerfeld to Castellana Grotte | 821.07 mi (1,321.38 km) |
| Clausthal-Zellerfeld to Castellaneta | 833.00 mi (1,340.59 km) |
| Clausthal-Zellerfeld to Castellanza | 432.53 mi (696.08 km) |
| Clausthal-Zellerfeld to Castellarano | 500.54 mi (805.54 km) |
| Clausthal-Zellerfeld to Castelleone | 450.51 mi (725.02 km) |
| Clausthal-Zellerfeld to Castelletto sopra Ticino | 427.71 mi (688.34 km) |
