| Speyer to Ciampino | 557.09 mi (896.55 km) |
| Speyer to Cicciano | 648.71 mi (1,044.00 km) |
| Speyer to Cingoli | 470.16 mi (756.64 km) |
| Speyer to Cinisello Balsamo | 263.01 mi (423.28 km) |
| Speyer to Cinisi | 804.64 mi (1,294.94 km) |
| Speyer to Cirie | 284.85 mi (458.43 km) |
| Speyer to Ciro Marina | 809.52 mi (1,302.79 km) |
| Speyer to Cislago | 254.76 mi (410.00 km) |
| Speyer to Cisterna di Latina | 574.70 mi (924.88 km) |
| Speyer to Cisternino | 737.26 mi (1,186.50 km) |
| Speyer to Citta di Castello | 443.56 mi (713.83 km) |
| Speyer to Citta Sant'Angelo | 541.73 mi (871.84 km) |
| Speyer to Cittadella | 297.88 mi (479.40 km) |
| Speyer to Cittanova | 847.41 mi (1,363.77 km) |
| Speyer to Cividale del Friuli | 321.68 mi (517.70 km) |
