| Porvoo to Corbetta | 1,237.26 mi (1,991.18 km) |
| Porvoo to Corciano | 1,316.93 mi (2,119.40 km) |
| Porvoo to Cordenons | 1,126.50 mi (1,812.93 km) |
| Porvoo to Cori | 1,403.31 mi (2,258.41 km) |
| Porvoo to Coriano | 1,257.47 mi (2,023.69 km) |
| Porvoo to Corigliano Calabro | 1,489.80 mi (2,397.60 km) |
| Porvoo to Corleone | 1,650.80 mi (2,656.70 km) |
| Porvoo to Cormano | 1,226.57 mi (1,973.97 km) |
| Porvoo to Cornaredo | 1,232.61 mi (1,983.70 km) |
| Porvoo to Cornate d'Adda | 1,213.78 mi (1,953.39 km) |
| Porvoo to Cornedo Vicentino | 1,176.07 mi (1,892.69 km) |
| Porvoo to Correggio | 1,240.74 mi (1,996.79 km) |
| Porvoo to Corridonia | 1,288.36 mi (2,073.42 km) |
| Porvoo to Corsico | 1,234.84 mi (1,987.29 km) |
| Porvoo to Cortona | 1,313.01 mi (2,113.08 km) |
