| Bonn to Castelli Calepio | 375.17 mi (603.78 km) |
| Bonn to Castelnovo ne' Monti | 461.54 mi (742.77 km) |
| Bonn to Castelnuovo Berardenga | 550.59 mi (886.10 km) |
| Bonn to Castelnuovo di Porto | 647.02 mi (1,041.28 km) |
| Bonn to Castelnuovo di Verona | 403.29 mi (649.03 km) |
| Bonn to Castelnuovo Rangone | 462.84 mi (744.86 km) |
| Bonn to Castelvetrano | 944.01 mi (1,519.23 km) |
| Bonn to Castelvetro di Modena | 466.35 mi (750.52 km) |
| Bonn to Castenaso | 475.54 mi (765.31 km) |
| Bonn to Castenedolo | 392.31 mi (631.36 km) |
| Bonn to Castiglion Fiorentino | 558.41 mi (898.68 km) |
| Bonn to Castiglione del Lago | 574.00 mi (923.76 km) |
| Bonn to Castiglione delle Stiviere | 400.43 mi (644.43 km) |
| Bonn to Castrolibero | 903.81 mi (1,454.55 km) |
| Bonn to Castrovillari | 872.96 mi (1,404.90 km) |
