| Porvoo to Cartagena | 1,956.56 mi (3,148.78 km) |
| Porvoo to Cartama | 2,106.79 mi (3,390.55 km) |
| Porvoo to Cartaya | 2,142.99 mi (3,448.80 km) |
| Porvoo to Caspe | 1,712.78 mi (2,756.46 km) |
| Porvoo to Cassa de la Selva | 1,598.44 mi (2,572.45 km) |
| Porvoo to Castalla | 1,887.87 mi (3,038.23 km) |
| Porvoo to Castellbisbal | 1,645.83 mi (2,648.70 km) |
| Porvoo to Castelldefels | 1,657.82 mi (2,668.00 km) |
| Porvoo to Castello de Ampurias | 1,571.18 mi (2,528.57 km) |
| Porvoo to Castellon de la Plana | 1,787.54 mi (2,876.77 km) |
| Porvoo to Castilleja de la Cuesta | 2,105.90 mi (3,389.11 km) |
| Porvoo to Catarroja | 1,832.17 mi (2,948.59 km) |
| Porvoo to Catral | 1,917.91 mi (3,086.57 km) |
| Porvoo to Caudete | 1,889.56 mi (3,040.95 km) |
| Porvoo to Cehegin | 1,947.77 mi (3,134.63 km) |
