| Castricum to Castrovillari | 1,035.63 mi (1,666.69 km) |
| Castricum to Catania | 1,155.02 mi (1,858.82 km) |
| Castricum to Catanzaro | 1,101.65 mi (1,772.94 km) |
| Castricum to Cattolica | 698.60 mi (1,124.29 km) |
| Castricum to Cava de' Tirreni | 945.09 mi (1,520.97 km) |
| Castricum to Cavallino | 1,059.19 mi (1,704.61 km) |
| Castricum to Cavarzere | 612.49 mi (985.72 km) |
| Castricum to Cave | 835.79 mi (1,345.07 km) |
| Castricum to Cavriago | 604.47 mi (972.80 km) |
| Castricum to Cavriglia | 698.36 mi (1,123.90 km) |
| Castricum to Cazzago San Martino | 538.77 mi (867.07 km) |
| Castricum to Ceccano | 860.15 mi (1,384.27 km) |
| Castricum to Cecina | 692.50 mi (1,114.46 km) |
| Castricum to Cefalu | 1,099.01 mi (1,768.69 km) |
| Castricum to Ceglie Messapico | 1,020.08 mi (1,641.65 km) |
