| Leiden to Cividale del Friuli | 581.25 mi (935.43 km) |
| Leiden to Civita Castellana | 775.19 mi (1,247.54 km) |
| Leiden to Civitanova Marche | 746.56 mi (1,201.48 km) |
| Leiden to Civitavecchia | 774.44 mi (1,246.34 km) |
| Leiden to Civitella in Val di Chiana | 690.21 mi (1,110.78 km) |
| Leiden to Clusone | 498.95 mi (802.98 km) |
| Leiden to Coccaglio | 519.24 mi (835.64 km) |
| Leiden to Codigoro | 614.24 mi (988.53 km) |
| Leiden to Codogno | 538.70 mi (866.96 km) |
| Leiden to Codroipo | 574.63 mi (924.78 km) |
| Leiden to Cogoleto | 569.66 mi (916.77 km) |
| Leiden to Colle di Val d'Elsa | 678.64 mi (1,092.17 km) |
| Leiden to Colle Salvetti | 652.86 mi (1,050.67 km) |
| Leiden to Collecchio | 574.88 mi (925.19 km) |
| Leiden to Colleferro | 823.78 mi (1,325.74 km) |
