| Portici to Cay | 898.78 mi (1,446.45 km) |
| Portici to Caybasi | 1,184.80 mi (1,906.76 km) |
| Portici to Caycuma | 922.39 mi (1,484.44 km) |
| Portici to Cayeli | 1,371.51 mi (2,207.23 km) |
| Portici to Cayiralan | 1,128.57 mi (1,816.27 km) |
| Portici to Cayirhan | 911.55 mi (1,467.00 km) |
| Portici to Cayirli | 1,350.73 mi (2,173.79 km) |
| Portici to Cayirova | 785.06 mi (1,263.43 km) |
| Portici to Caykara | 1,350.07 mi (2,172.72 km) |
| Portici to Cekerek | 1,110.77 mi (1,787.61 km) |
| Portici to Cekme | 773.76 mi (1,245.25 km) |
| Portici to Celtik | 931.33 mi (1,498.83 km) |
| Portici to Cerkes | 968.15 mi (1,558.08 km) |
| Portici to Cerkezkoy | 711.68 mi (1,145.33 km) |
| Portici to Cermik | 1,347.19 mi (2,168.10 km) |
