| Speyer to Castelfiorentino | 413.12 mi (664.86 km) |
| Speyer to Castelfranco di Sopra | 420.64 mi (676.95 km) |
| Speyer to Castelfranco di Sotto | 403.56 mi (649.47 km) |
| Speyer to Castelfranco Emilia | 348.89 mi (561.48 km) |
| Speyer to Castelfranco Veneto | 300.63 mi (483.82 km) |
| Speyer to Castellabate | 701.08 mi (1,128.28 km) |
| Speyer to Castellammare del Golfo | 810.96 mi (1,305.11 km) |
| Speyer to Castellammare di Stabia | 664.63 mi (1,069.61 km) |
| Speyer to Castellamonte | 274.12 mi (441.15 km) |
| Speyer to Castellana Grotte | 720.94 mi (1,160.24 km) |
| Speyer to Castellaneta | 728.96 mi (1,173.15 km) |
| Speyer to Castellanza | 256.77 mi (413.22 km) |
| Speyer to Castellarano | 346.57 mi (557.75 km) |
| Speyer to Castelleone | 284.89 mi (458.48 km) |
| Speyer to Castelletto sopra Ticino | 249.10 mi (400.89 km) |
