| Donaueschingen to Castelfiorentino | 323.30 mi (520.31 km) |
| Donaueschingen to Castelfranco di Sopra | 333.32 mi (536.43 km) |
| Donaueschingen to Castelfranco di Sotto | 313.10 mi (503.89 km) |
| Donaueschingen to Castelfranco Emilia | 261.89 mi (421.47 km) |
| Donaueschingen to Castelfranco Veneto | 226.38 mi (364.32 km) |
| Donaueschingen to Castellabate | 618.76 mi (995.80 km) |
| Donaueschingen to Castellammare del Golfo | 720.35 mi (1,159.29 km) |
| Donaueschingen to Castellammare di Stabia | 581.64 mi (936.06 km) |
| Donaueschingen to Castellamonte | 181.56 mi (292.19 km) |
| Donaueschingen to Castellana Grotte | 648.33 mi (1,043.38 km) |
| Donaueschingen to Castellaneta | 654.62 mi (1,053.51 km) |
| Donaueschingen to Castellanza | 162.52 mi (261.54 km) |
| Donaueschingen to Castellarano | 258.06 mi (415.30 km) |
| Donaueschingen to Castelleone | 193.05 mi (310.68 km) |
| Donaueschingen to Castelletto sopra Ticino | 154.64 mi (248.87 km) |
