| Porvoo to Cay | 1,524.28 mi (2,453.09 km) |
| Porvoo to Caybasi | 1,423.44 mi (2,290.80 km) |
| Porvoo to Caycuma | 1,338.48 mi (2,154.07 km) |
| Porvoo to Cayeli | 1,479.46 mi (2,380.95 km) |
| Porvoo to Cayiralan | 1,519.51 mi (2,445.42 km) |
| Porvoo to Cayirhan | 1,425.80 mi (2,294.60 km) |
| Porvoo to Cayirli | 1,550.76 mi (2,495.71 km) |
| Porvoo to Cayirova | 1,361.24 mi (2,190.71 km) |
| Porvoo to Caykara | 1,492.88 mi (2,402.56 km) |
| Porvoo to Cekerek | 1,466.04 mi (2,359.36 km) |
| Porvoo to Cekme | 1,345.82 mi (2,165.89 km) |
| Porvoo to Celtik | 1,500.16 mi (2,414.27 km) |
| Porvoo to Cerkes | 1,387.54 mi (2,233.03 km) |
| Porvoo to Cerkezkoy | 1,324.17 mi (2,131.05 km) |
| Porvoo to Cermik | 1,650.91 mi (2,656.88 km) |
