| Fort Collins to Cognac | 4,886.14 mi (7,863.48 km) |
| Fort Collins to Cogolin | 5,251.79 mi (8,451.95 km) |
| Fort Collins to Colmar | 5,053.20 mi (8,132.34 km) |
| Fort Collins to Colombes | 4,839.01 mi (7,787.63 km) |
| Fort Collins to Colomiers | 5,040.91 mi (8,112.56 km) |
| Fort Collins to Combs-la-Ville | 4,860.97 mi (7,822.98 km) |
| Fort Collins to Comines | 4,784.33 mi (7,699.64 km) |
| Fort Collins to Compiegne | 4,837.25 mi (7,784.81 km) |
| Fort Collins to Concarneau | 4,659.76 mi (7,499.16 km) |
| Fort Collins to Conde-sur-l'Escaut | 4,817.76 mi (7,753.43 km) |
| Fort Collins to Conflans-Sainte-Honorine | 4,830.30 mi (7,773.62 km) |
| Fort Collins to Corbas | 5,079.77 mi (8,175.09 km) |
| Fort Collins to Corbeil-Essonnes | 4,860.71 mi (7,822.56 km) |
| Fort Collins to Cormeilles-en-Parisis | 4,835.02 mi (7,781.22 km) |
| Fort Collins to Cosne sur Loire | 4,929.85 mi (7,933.83 km) |
