| Speyer to Cassino | 600.08 mi (965.73 km) |
| Speyer to Castagneto Carducci | 437.51 mi (704.11 km) |
| Speyer to Castano Primo | 260.91 mi (419.90 km) |
| Speyer to Castel Bolognese | 380.49 mi (612.34 km) |
| Speyer to Castel Gandolfo | 561.44 mi (903.56 km) |
| Speyer to Castel Goffredo | 293.85 mi (472.91 km) |
| Speyer to Castel Maggiore | 356.31 mi (573.43 km) |
| Speyer to Castel Mella | 275.84 mi (443.93 km) |
| Speyer to Castel San Giorgio | 663.88 mi (1,068.42 km) |
| Speyer to Castel San Giovanni | 298.71 mi (480.73 km) |
| Speyer to Castel San Pietro Terme | 371.01 mi (597.08 km) |
| Speyer to Castel Volturno | 630.31 mi (1,014.38 km) |
| Speyer to Castelbuono | 835.62 mi (1,344.81 km) |
| Speyer to Casteldaccia | 818.82 mi (1,317.76 km) |
| Speyer to Castelfidardo | 472.06 mi (759.70 km) |
