| Siechnice to Cividale del Friuli | 381.01 mi (613.17 km) |
| Siechnice to Civita Castellana | 644.08 mi (1,036.54 km) |
| Siechnice to Civitanova Marche | 558.00 mi (898.01 km) |
| Siechnice to Civitavecchia | 667.32 mi (1,073.94 km) |
| Siechnice to Civitella in Val di Chiana | 584.63 mi (940.86 km) |
| Siechnice to Clusone | 485.03 mi (780.58 km) |
| Siechnice to Coccaglio | 501.27 mi (806.72 km) |
| Siechnice to Codigoro | 487.63 mi (784.76 km) |
| Siechnice to Codogno | 531.40 mi (855.21 km) |
| Siechnice to Codroipo | 399.12 mi (642.32 km) |
| Siechnice to Cogoleto | 605.27 mi (974.09 km) |
| Siechnice to Colle di Val d'Elsa | 598.02 mi (962.42 km) |
| Siechnice to Colle Salvetti | 600.77 mi (966.84 km) |
| Siechnice to Collecchio | 539.79 mi (868.70 km) |
| Siechnice to Colleferro | 672.07 mi (1,081.59 km) |
