| Castricum to Cay | 1,583.56 mi (2,548.49 km) |
| Castricum to Caybasi | 1,708.39 mi (2,749.39 km) |
| Castricum to Caycuma | 1,489.66 mi (2,397.38 km) |
| Castricum to Cayeli | 1,854.53 mi (2,984.58 km) |
| Castricum to Cayiralan | 1,727.51 mi (2,780.16 km) |
| Castricum to Cayirhan | 1,535.37 mi (2,470.93 km) |
| Castricum to Cayirli | 1,881.67 mi (3,028.25 km) |
| Castricum to Cayirova | 1,412.52 mi (2,273.23 km) |
| Castricum to Caykara | 1,849.15 mi (2,975.92 km) |
| Castricum to Cekerek | 1,686.30 mi (2,713.84 km) |
| Castricum to Cekme | 1,395.12 mi (2,245.22 km) |
| Castricum to Celtik | 1,591.09 mi (2,560.61 km) |
| Castricum to Cerkes | 1,549.43 mi (2,493.57 km) |
| Castricum to Cerkezkoy | 1,338.79 mi (2,154.58 km) |
| Castricum to Cermik | 1,933.64 mi (3,111.89 km) |
