| Siechnice to Collegno | 603.48 mi (971.20 km) |
| Siechnice to Cologno al Serio | 508.67 mi (818.62 km) |
| Siechnice to Cologno Monzese | 524.70 mi (844.43 km) |
| Siechnice to Colorno | 524.72 mi (844.46 km) |
| Siechnice to Comacchio | 494.44 mi (795.72 km) |
| Siechnice to Comiso | 981.37 mi (1,579.37 km) |
| Siechnice to Como | 516.34 mi (830.98 km) |
| Siechnice to Concordia Sagittaria | 414.00 mi (666.26 km) |
| Siechnice to Concorezzo | 519.69 mi (836.36 km) |
| Siechnice to Conegliano | 419.42 mi (675.00 km) |
| Siechnice to Conselice | 513.43 mi (826.29 km) |
| Siechnice to Conselve | 468.96 mi (754.72 km) |
| Siechnice to Conversano | 695.77 mi (1,119.74 km) |
| Siechnice to Copertino | 745.38 mi (1,199.57 km) |
| Siechnice to Copparo | 489.93 mi (788.47 km) |
