| Siegburg to Cassino | 716.03 mi (1,152.33 km) |
| Siegburg to Castagneto Carducci | 551.10 mi (886.90 km) |
| Siegburg to Castano Primo | 369.88 mi (595.27 km) |
| Siegburg to Castel Bolognese | 496.41 mi (798.90 km) |
| Siegburg to Castel Gandolfo | 677.08 mi (1,089.65 km) |
| Siegburg to Castel Goffredo | 409.04 mi (658.29 km) |
| Siegburg to Castel Maggiore | 472.09 mi (759.76 km) |
| Siegburg to Castel Mella | 390.57 mi (628.56 km) |
| Siegburg to Castel San Giorgio | 779.77 mi (1,254.91 km) |
| Siegburg to Castel San Giovanni | 410.51 mi (660.66 km) |
| Siegburg to Castel San Pietro Terme | 486.86 mi (783.53 km) |
| Siegburg to Castel Volturno | 746.26 mi (1,200.98 km) |
| Siegburg to Castelbuono | 951.07 mi (1,530.60 km) |
| Siegburg to Casteldaccia | 933.88 mi (1,502.94 km) |
| Siegburg to Castelfidardo | 587.59 mi (945.63 km) |
