| Webster Groves to Castelfidardo | 5,042.26 mi (8,114.73 km) |
| Webster Groves to Castelfiorentino | 4,933.13 mi (7,939.10 km) |
| Webster Groves to Castelfranco di Sopra | 4,956.05 mi (7,975.99 km) |
| Webster Groves to Castelfranco di Sotto | 4,920.30 mi (7,918.46 km) |
| Webster Groves to Castelfranco Emilia | 4,896.19 mi (7,879.66 km) |
| Webster Groves to Castelfranco Veneto | 4,887.61 mi (7,865.84 km) |
| Webster Groves to Castellabate | 5,235.28 mi (8,425.37 km) |
| Webster Groves to Castellammare del Golfo | 5,245.71 mi (8,442.15 km) |
| Webster Groves to Castellammare di Stabia | 5,197.93 mi (8,365.26 km) |
| Webster Groves to Castellamonte | 4,731.15 mi (7,614.05 km) |
| Webster Groves to Castellana Grotte | 5,298.42 mi (8,526.98 km) |
| Webster Groves to Castellaneta | 5,300.15 mi (8,529.77 km) |
| Webster Groves to Castellanza | 4,769.78 mi (7,676.22 km) |
| Webster Groves to Castellarano | 4,886.63 mi (7,864.28 km) |
| Webster Groves to Castelleone | 4,816.72 mi (7,751.76 km) |
