| Webster Groves to Caltagirone | 5,349.45 mi (8,609.10 km) |
| Webster Groves to Caltanissetta | 5,319.26 mi (8,560.51 km) |
| Webster Groves to Calvisano | 4,837.88 mi (7,785.81 km) |
| Webster Groves to Calvizzano | 5,176.94 mi (8,331.48 km) |
| Webster Groves to Camaiore | 4,892.68 mi (7,874.00 km) |
| Webster Groves to Cameri | 4,764.32 mi (7,667.43 km) |
| Webster Groves to Camisano Vicentino | 4,885.22 mi (7,861.99 km) |
| Webster Groves to Campagna | 5,224.46 mi (8,407.95 km) |
| Webster Groves to Campagnano di Roma | 5,051.14 mi (8,129.02 km) |
| Webster Groves to Campi Bisenzio | 4,931.04 mi (7,935.75 km) |
| Webster Groves to Campi Salentina | 5,354.00 mi (8,616.43 km) |
| Webster Groves to Campiglia Marittima | 4,940.56 mi (7,951.06 km) |
| Webster Groves to Campobasso | 5,167.95 mi (8,317.02 km) |
| Webster Groves to Campobello di Licata | 5,323.48 mi (8,567.32 km) |
| Webster Groves to Campobello di Mazara | 5,256.96 mi (8,460.26 km) |
