| Port Royal to Cognac | 4,228.95 mi (6,805.83 km) |
| Port Royal to Cogolin | 4,604.79 mi (7,410.69 km) |
| Port Royal to Colmar | 4,514.08 mi (7,264.71 km) |
| Port Royal to Colombes | 4,274.65 mi (6,879.39 km) |
| Port Royal to Colomiers | 4,353.46 mi (7,006.22 km) |
| Port Royal to Combs-la-Ville | 4,293.44 mi (6,909.62 km) |
| Port Royal to Comines | 4,267.78 mi (6,868.33 km) |
| Port Royal to Compiegne | 4,288.60 mi (6,901.83 km) |
| Port Royal to Concarneau | 4,023.49 mi (6,475.18 km) |
| Port Royal to Conde-sur-l'Escaut | 4,298.72 mi (6,918.13 km) |
| Port Royal to Conflans-Sainte-Honorine | 4,266.40 mi (6,866.10 km) |
| Port Royal to Corbas | 4,467.30 mi (7,189.43 km) |
| Port Royal to Corbeil-Essonnes | 4,291.28 mi (6,906.15 km) |
| Port Royal to Cormeilles-en-Parisis | 4,271.38 mi (6,874.13 km) |
| Port Royal to Cosne sur Loire | 4,337.48 mi (6,980.50 km) |
