| Port Royal to Coudekerque-Branche | 4,236.71 mi (6,818.32 km) |
| Port Royal to Coueron | 4,134.39 mi (6,653.65 km) |
| Port Royal to Coulommiers | 4,312.86 mi (6,940.88 km) |
| Port Royal to Courbevoic | 4,275.24 mi (6,880.34 km) |
| Port Royal to Courcouronnes | 4,288.78 mi (6,902.13 km) |
| Port Royal to Cournon-d'Auvergne | 4,388.56 mi (7,062.71 km) |
| Port Royal to Courrieres | 4,271.61 mi (6,874.49 km) |
| Port Royal to Coutras | 4,252.43 mi (6,843.62 km) |
| Port Royal to Couzeix | 4,296.59 mi (6,914.70 km) |
| Port Royal to Cran-Gevrier | 4,515.18 mi (7,266.48 km) |
| Port Royal to Craponne | 4,457.34 mi (7,173.39 km) |
| Port Royal to Creil | 4,277.42 mi (6,883.85 km) |
| Port Royal to Crepy-en-Valois | 4,295.26 mi (6,912.55 km) |
| Port Royal to Crest | 4,496.55 mi (7,236.50 km) |
| Port Royal to Creteil | 4,286.60 mi (6,898.62 km) |
