| Speyer to Civita Castellana | 521.54 mi (839.34 km) |
| Speyer to Civitanova Marche | 486.55 mi (783.03 km) |
| Speyer to Civitavecchia | 524.48 mi (844.08 km) |
| Speyer to Civitella in Val di Chiana | 436.77 mi (702.92 km) |
| Speyer to Clusone | 247.72 mi (398.66 km) |
| Speyer to Coccaglio | 269.39 mi (433.54 km) |
| Speyer to Codigoro | 355.07 mi (571.43 km) |
| Speyer to Codogno | 293.52 mi (472.38 km) |
| Speyer to Codroipo | 313.93 mi (505.22 km) |
| Speyer to Cogoleto | 340.78 mi (548.43 km) |
| Speyer to Colle di Val d'Elsa | 428.73 mi (689.98 km) |
| Speyer to Colle Salvetti | 407.02 mi (655.04 km) |
| Speyer to Collecchio | 326.69 mi (525.76 km) |
| Speyer to Colleferro | 568.94 mi (915.62 km) |
| Speyer to Collegno | 295.84 mi (476.11 km) |
