| Porvoo to Coueron | 1,423.38 mi (2,290.71 km) |
| Porvoo to Coulommiers | 1,195.96 mi (1,924.71 km) |
| Porvoo to Courbevoic | 1,215.91 mi (1,956.81 km) |
| Porvoo to Courcouronnes | 1,225.20 mi (1,971.77 km) |
| Porvoo to Cournon-d'Auvergne | 1,363.01 mi (2,193.55 km) |
| Porvoo to Courrieres | 1,114.93 mi (1,794.31 km) |
| Porvoo to Coutras | 1,495.04 mi (2,406.03 km) |
| Porvoo to Couzeix | 1,409.47 mi (2,268.33 km) |
| Porvoo to Cran-Gevrier | 1,277.91 mi (2,056.60 km) |
| Porvoo to Craponne | 1,322.42 mi (2,128.23 km) |
| Porvoo to Creil | 1,190.24 mi (1,915.50 km) |
| Porvoo to Crepy-en-Valois | 1,179.56 mi (1,898.32 km) |
| Porvoo to Crest | 1,374.59 mi (2,212.19 km) |
| Porvoo to Creteil | 1,215.37 mi (1,955.94 km) |
| Porvoo to Creutzwald | 1,073.39 mi (1,727.45 km) |
