| Porvoo to Civita Castellana | 1,369.09 mi (2,203.34 km) |
| Porvoo to Civitanova Marche | 1,281.57 mi (2,062.49 km) |
| Porvoo to Civitavecchia | 1,392.42 mi (2,240.88 km) |
| Porvoo to Civitella in Val di Chiana | 1,308.87 mi (2,106.42 km) |
| Porvoo to Clusone | 1,188.84 mi (1,913.25 km) |
| Porvoo to Coccaglio | 1,207.99 mi (1,944.07 km) |
| Porvoo to Codigoro | 1,210.71 mi (1,948.44 km) |
| Porvoo to Codogno | 1,238.85 mi (1,993.73 km) |
| Porvoo to Codroipo | 1,122.58 mi (1,806.62 km) |
| Porvoo to Cogoleto | 1,309.59 mi (2,107.59 km) |
| Porvoo to Colle di Val d'Elsa | 1,320.85 mi (2,125.71 km) |
| Porvoo to Colle Salvetti | 1,320.71 mi (2,125.48 km) |
| Porvoo to Collecchio | 1,253.59 mi (2,017.46 km) |
| Porvoo to Colleferro | 1,395.80 mi (2,246.33 km) |
| Porvoo to Collegno | 1,291.77 mi (2,078.90 km) |
