| Bonn to Castelfiorentino | 525.08 mi (845.03 km) |
| Bonn to Castelfranco di Sopra | 533.75 mi (858.98 km) |
| Bonn to Castelfranco di Sotto | 515.09 mi (828.96 km) |
| Bonn to Castelfranco Emilia | 462.00 mi (743.52 km) |
| Bonn to Castelfranco Veneto | 414.64 mi (667.29 km) |
| Bonn to Castellabate | 815.22 mi (1,311.97 km) |
| Bonn to Castellammare del Golfo | 922.48 mi (1,484.59 km) |
| Bonn to Castellammare di Stabia | 778.73 mi (1,253.24 km) |
| Bonn to Castellamonte | 370.81 mi (596.77 km) |
| Bonn to Castellana Grotte | 833.97 mi (1,342.15 km) |
| Bonn to Castellaneta | 842.36 mi (1,355.65 km) |
| Bonn to Castellanza | 363.09 mi (584.34 km) |
| Bonn to Castellarano | 459.12 mi (738.88 km) |
| Bonn to Castelleone | 395.24 mi (636.08 km) |
| Bonn to Castelletto sopra Ticino | 353.70 mi (569.23 km) |
