| Porvoo to Catania | 1,648.26 mi (2,652.61 km) |
| Porvoo to Catanzaro | 1,536.15 mi (2,472.20 km) |
| Porvoo to Cattolica | 1,255.10 mi (2,019.90 km) |
| Porvoo to Cava de' Tirreni | 1,438.91 mi (2,315.70 km) |
| Porvoo to Cavallino | 1,423.58 mi (2,291.04 km) |
| Porvoo to Cavarzere | 1,192.03 mi (1,918.38 km) |
| Porvoo to Cave | 1,391.69 mi (2,239.70 km) |
| Porvoo to Cavriago | 1,250.22 mi (2,012.03 km) |
| Porvoo to Cavriglia | 1,306.78 mi (2,103.07 km) |
| Porvoo to Cazzago San Martino | 1,205.83 mi (1,940.59 km) |
| Porvoo to Ceccano | 1,401.71 mi (2,255.83 km) |
| Porvoo to Cecina | 1,338.06 mi (2,153.40 km) |
| Porvoo to Cefalu | 1,626.35 mi (2,617.36 km) |
| Porvoo to Ceglie Messapico | 1,408.04 mi (2,266.03 km) |
| Porvoo to Celano | 1,363.99 mi (2,195.13 km) |
