| Siegburg to Castelfiorentino | 527.80 mi (849.42 km) |
| Siegburg to Castelfranco di Sopra | 536.15 mi (862.85 km) |
| Siegburg to Castelfranco di Sotto | 517.91 mi (833.50 km) |
| Siegburg to Castelfranco Emilia | 464.39 mi (747.37 km) |
| Siegburg to Castelfranco Veneto | 416.01 mi (669.50 km) |
| Siegburg to Castellabate | 816.97 mi (1,314.79 km) |
| Siegburg to Castellammare del Golfo | 925.36 mi (1,489.22 km) |
| Siegburg to Castellammare di Stabia | 780.56 mi (1,256.19 km) |
| Siegburg to Castellamonte | 375.17 mi (603.78 km) |
| Siegburg to Castellana Grotte | 834.76 mi (1,343.42 km) |
| Siegburg to Castellaneta | 843.31 mi (1,357.17 km) |
| Siegburg to Castellanza | 366.61 mi (590.00 km) |
| Siegburg to Castellarano | 461.68 mi (743.00 km) |
| Siegburg to Castelleone | 398.24 mi (640.91 km) |
| Siegburg to Castelletto sopra Ticino | 357.40 mi (575.17 km) |
