| Niederkassel to Castelfiorentino | 531.51 mi (855.38 km) |
| Niederkassel to Castelfranco di Sopra | 540.20 mi (869.37 km) |
| Niederkassel to Castelfranco di Sotto | 521.52 mi (839.30 km) |
| Niederkassel to Castelfranco Emilia | 468.46 mi (753.91 km) |
| Niederkassel to Castelfranco Veneto | 421.04 mi (677.60 km) |
| Niederkassel to Castellabate | 821.66 mi (1,322.34 km) |
| Niederkassel to Castellammare del Golfo | 928.90 mi (1,494.91 km) |
| Niederkassel to Castellammare di Stabia | 785.17 mi (1,263.62 km) |
| Niederkassel to Castellamonte | 376.80 mi (606.40 km) |
| Niederkassel to Castellana Grotte | 840.28 mi (1,352.30 km) |
| Niederkassel to Castellaneta | 848.70 mi (1,365.85 km) |
| Niederkassel to Castellanza | 369.39 mi (594.47 km) |
| Niederkassel to Castellarano | 465.57 mi (749.26 km) |
| Niederkassel to Castelleone | 401.64 mi (646.38 km) |
| Niederkassel to Castelletto sopra Ticino | 359.95 mi (579.29 km) |
