| Speyer to Castelli Calepio | 263.75 mi (424.46 km) |
| Speyer to Castelnovo ne' Monti | 350.14 mi (563.49 km) |
| Speyer to Castelnuovo Berardenga | 437.80 mi (704.57 km) |
| Speyer to Castelnuovo di Porto | 533.69 mi (858.89 km) |
| Speyer to Castelnuovo di Verona | 289.85 mi (466.47 km) |
| Speyer to Castelnuovo Rangone | 349.99 mi (563.25 km) |
| Speyer to Castelvetrano | 832.80 mi (1,340.26 km) |
| Speyer to Castelvetro di Modena | 353.52 mi (568.94 km) |
| Speyer to Castenaso | 361.88 mi (582.39 km) |
| Speyer to Castenedolo | 279.87 mi (450.40 km) |
| Speyer to Castiglion Fiorentino | 445.01 mi (716.18 km) |
| Speyer to Castiglione del Lago | 460.57 mi (741.22 km) |
| Speyer to Castiglione delle Stiviere | 287.57 mi (462.79 km) |
| Speyer to Castrolibero | 789.67 mi (1,270.85 km) |
| Speyer to Castrovillari | 758.88 mi (1,221.30 km) |
