| Rio Maior to Cognac | 620.01 mi (997.81 km) |
| Rio Maior to Cogolin | 845.69 mi (1,361.00 km) |
| Rio Maior to Colmar | 1,010.10 mi (1,625.60 km) |
| Rio Maior to Colombes | 862.31 mi (1,387.75 km) |
| Rio Maior to Colomiers | 607.76 mi (978.09 km) |
| Rio Maior to Combs-la-Ville | 859.75 mi (1,383.64 km) |
| Rio Maior to Comines | 978.82 mi (1,575.26 km) |
| Rio Maior to Compiegne | 904.64 mi (1,455.88 km) |
| Rio Maior to Concarneau | 640.95 mi (1,031.51 km) |
| Rio Maior to Conde-sur-l'Escaut | 979.92 mi (1,577.03 km) |
| Rio Maior to Conflans-Sainte-Honorine | 861.27 mi (1,386.08 km) |
| Rio Maior to Corbas | 827.88 mi (1,332.35 km) |
| Rio Maior to Corbeil-Essonnes | 854.50 mi (1,375.18 km) |
| Rio Maior to Cormeilles-en-Parisis | 863.22 mi (1,389.22 km) |
| Rio Maior to Cosne sur Loire | 814.49 mi (1,310.80 km) |
