| Porvoo to Carovigno | 1,402.91 mi (2,257.77 km) |
| Porvoo to Carpenedolo | 1,210.65 mi (1,948.35 km) |
| Porvoo to Carpi | 1,237.89 mi (1,992.19 km) |
| Porvoo to Carrara | 1,298.12 mi (2,089.12 km) |
| Porvoo to Carugate | 1,222.87 mi (1,968.02 km) |
| Porvoo to Casal di Principe | 1,425.91 mi (2,294.79 km) |
| Porvoo to Casale Monferrato | 1,267.95 mi (2,040.56 km) |
| Porvoo to Casale sul Sile | 1,157.81 mi (1,863.32 km) |
| Porvoo to Casalecchio di Reno | 1,248.95 mi (2,009.99 km) |
| Porvoo to Casalgrande | 1,253.51 mi (2,017.34 km) |
| Porvoo to Casalmaggiore | 1,234.73 mi (1,987.10 km) |
| Porvoo to Casalnuovo di Napoli | 1,429.42 mi (2,300.42 km) |
| Porvoo to Casalpusterlengo | 1,238.93 mi (1,993.86 km) |
| Porvoo to Casaluce | 1,426.05 mi (2,295.01 km) |
| Porvoo to Casamassima | 1,394.17 mi (2,243.70 km) |
