| Webster Groves to Cognac | 4,387.84 mi (7,061.55 km) |
| Webster Groves to Cogolin | 4,764.23 mi (7,667.29 km) |
| Webster Groves to Colmar | 4,615.04 mi (7,427.19 km) |
| Webster Groves to Colombes | 4,384.73 mi (7,056.55 km) |
| Webster Groves to Colomiers | 4,530.71 mi (7,291.47 km) |
| Webster Groves to Combs-la-Ville | 4,405.53 mi (7,090.02 km) |
| Webster Groves to Comines | 4,352.55 mi (7,004.75 km) |
| Webster Groves to Compiegne | 4,390.63 mi (7,066.04 km) |
| Webster Groves to Concarneau | 4,167.58 mi (6,707.06 km) |
| Webster Groves to Conde-sur-l'Escaut | 4,385.36 mi (7,057.56 km) |
| Webster Groves to Conflans-Sainte-Honorine | 4,376.09 mi (7,042.64 km) |
| Webster Groves to Corbas | 4,606.17 mi (7,412.92 km) |
| Webster Groves to Corbeil-Essonnes | 4,404.34 mi (7,088.10 km) |
| Webster Groves to Cormeilles-en-Parisis | 4,381.03 mi (7,050.58 km) |
| Webster Groves to Cosne sur Loire | 4,463.51 mi (7,183.32 km) |
