| Porvoo to Casandrino | 1,429.75 mi (2,300.97 km) |
| Porvoo to Casapulla | 1,420.42 mi (2,285.94 km) |
| Porvoo to Casarano | 1,444.29 mi (2,324.36 km) |
| Porvoo to Casatenovo | 1,214.25 mi (1,954.14 km) |
| Porvoo to Casciana Terme | 1,322.61 mi (2,128.53 km) |
| Porvoo to Cascina | 1,314.11 mi (2,114.85 km) |
| Porvoo to Caselle Torinese | 1,283.97 mi (2,066.36 km) |
| Porvoo to Caserta | 1,419.69 mi (2,284.78 km) |
| Porvoo to Casier | 1,155.28 mi (1,859.24 km) |
| Porvoo to Casorate Primo | 1,244.23 mi (2,002.39 km) |
| Porvoo to Casoria | 1,431.24 mi (2,303.36 km) |
| Porvoo to Cassano al Ionio | 1,479.74 mi (2,381.41 km) |
| Porvoo to Cassano d'Adda | 1,219.86 mi (1,963.18 km) |
| Porvoo to Cassano delle Murge | 1,400.38 mi (2,253.70 km) |
| Porvoo to Cassina de' Pecchi | 1,224.18 mi (1,970.13 km) |
