| Porvoo to Campogalliano | 1,244.86 mi (2,003.41 km) |
| Porvoo to Campolongo Maggiore | 1,180.17 mi (1,899.29 km) |
| Porvoo to Camponogara | 1,176.67 mi (1,893.67 km) |
| Porvoo to Camposampiero | 1,167.64 mi (1,879.14 km) |
| Porvoo to Canegrate | 1,230.77 mi (1,980.73 km) |
| Porvoo to Canelli | 1,297.02 mi (2,087.36 km) |
| Porvoo to Canicatti | 1,673.23 mi (2,692.80 km) |
| Porvoo to Canosa di Puglia | 1,386.37 mi (2,231.14 km) |
| Porvoo to Cantu | 1,216.09 mi (1,957.10 km) |
| Porvoo to Caorle | 1,147.48 mi (1,846.68 km) |
| Porvoo to Capaci | 1,628.43 mi (2,620.70 km) |
| Porvoo to Capannori | 1,303.20 mi (2,097.30 km) |
| Porvoo to Capena | 1,377.04 mi (2,216.12 km) |
| Porvoo to Capo d'Orlando | 1,609.05 mi (2,589.51 km) |
| Porvoo to Capodrise | 1,421.28 mi (2,287.33 km) |
