| Castricum to Collegno | 532.84 mi (857.52 km) |
| Castricum to Cologno al Serio | 532.24 mi (856.55 km) |
| Castricum to Cologno Monzese | 527.92 mi (849.60 km) |
| Castricum to Colorno | 586.75 mi (944.28 km) |
| Castricum to Comacchio | 641.11 mi (1,031.77 km) |
| Castricum to Comiso | 1,180.35 mi (1,899.59 km) |
| Castricum to Como | 506.40 mi (814.98 km) |
| Castricum to Concordia Sagittaria | 596.20 mi (959.49 km) |
| Castricum to Concorezzo | 525.03 mi (844.95 km) |
| Castricum to Conegliano | 574.26 mi (924.18 km) |
| Castricum to Conselice | 643.94 mi (1,036.32 km) |
| Castricum to Conselve | 601.46 mi (967.95 km) |
| Castricum to Conversano | 990.90 mi (1,594.70 km) |
| Castricum to Copertino | 1,057.88 mi (1,702.49 km) |
| Castricum to Copparo | 620.66 mi (998.86 km) |
