| Regensburg to Castelli Calepio | 255.13 mi (410.59 km) |
| Regensburg to Castelnovo ne' Monti | 326.54 mi (525.52 km) |
| Regensburg to Castelnuovo Berardenga | 392.68 mi (631.97 km) |
| Regensburg to Castelnuovo di Porto | 476.02 mi (766.08 km) |
| Regensburg to Castelnuovo di Verona | 255.17 mi (410.65 km) |
| Regensburg to Castelnuovo Rangone | 313.37 mi (504.32 km) |
| Regensburg to Castelvetrano | 783.86 mi (1,261.51 km) |
| Regensburg to Castelvetro di Modena | 316.64 mi (509.58 km) |
| Regensburg to Castenaso | 312.75 mi (503.32 km) |
| Regensburg to Castenedolo | 258.94 mi (416.72 km) |
| Regensburg to Castiglion Fiorentino | 392.03 mi (630.91 km) |
| Regensburg to Castiglione del Lago | 406.14 mi (653.62 km) |
| Regensburg to Castiglione delle Stiviere | 260.69 mi (419.54 km) |
| Regensburg to Castrolibero | 700.29 mi (1,127.02 km) |
| Regensburg to Castrovillari | 667.07 mi (1,073.55 km) |
