| Webster Groves to Cloverleaf (Texas) | 667.09 mi (1,073.58 km) |
| Webster Groves to Cloverly (Maryland) | 718.90 mi (1,156.96 km) |
| Webster Groves to Clovis (California) | 1,600.98 mi (2,576.53 km) |
| Webster Groves to Clovis (New Mexico) | 767.52 mi (1,235.21 km) |
| Webster Groves to Clute (Texas) | 720.94 mi (1,160.23 km) |
| Webster Groves to Coachella (California) | 1,472.94 mi (2,370.46 km) |
| Webster Groves to Coalinga (California) | 1,647.10 mi (2,650.76 km) |
| Webster Groves to Coamo (Puerto Rico) | 2,021.62 mi (3,253.48 km) |
| Webster Groves to Coatesville (Pennsylvania) | 782.36 mi (1,259.09 km) |
| Webster Groves to Cockeysville (Maryland) | 738.49 mi (1,188.48 km) |
| Webster Groves to Cocoa (Florida) | 894.56 mi (1,439.66 km) |
| Webster Groves to Cocoa Beach (Florida) | 902.30 mi (1,452.11 km) |
| Webster Groves to Coconut Creek (Florida) | 1,035.12 mi (1,665.86 km) |
| Webster Groves to Coeur d'Alene (Idaho) | 1,464.53 mi (2,356.93 km) |
| Webster Groves to Cohoes (New York) | 917.13 mi (1,475.98 km) |
