| Porvoo to Carquefou | 1,412.13 mi (2,272.60 km) |
| Porvoo to Carqueiranne | 1,447.63 mi (2,329.73 km) |
| Porvoo to Carrieres-sous-Poissy | 1,219.63 mi (1,962.80 km) |
| Porvoo to Carrieres-sur-Seine | 1,214.17 mi (1,954.02 km) |
| Porvoo to Carros | 1,380.20 mi (2,221.21 km) |
| Porvoo to Carvin | 1,112.85 mi (1,790.95 km) |
| Porvoo to Castanet-Tolosan | 1,537.49 mi (2,474.35 km) |
| Porvoo to Castelginest | 1,528.86 mi (2,460.47 km) |
| Porvoo to Castelnau-le-Lez | 1,467.75 mi (2,362.11 km) |
| Porvoo to Castelnaudary | 1,536.96 mi (2,473.49 km) |
| Porvoo to Castelsarrasin | 1,517.60 mi (2,442.34 km) |
| Porvoo to Castres | 1,512.58 mi (2,434.27 km) |
| Porvoo to Caudebec-les-Elbeuf | 1,232.89 mi (1,984.14 km) |
| Porvoo to Caudry | 1,117.91 mi (1,799.10 km) |
| Porvoo to Cavaillon | 1,427.41 mi (2,297.19 km) |
