| Webster Groves to Cordele (Georgia) | 589.41 mi (948.57 km) |
| Webster Groves to Corinth (Mississippi) | 271.27 mi (436.57 km) |
| Webster Groves to Corinth (Texas) | 531.45 mi (855.28 km) |
| Webster Groves to Cornelius (North Carolina) | 564.73 mi (908.85 km) |
| Webster Groves to Cornelius (Oregon) | 1,731.11 mi (2,785.96 km) |
| Webster Groves to Corning (New York) | 741.07 mi (1,192.63 km) |
| Webster Groves to Corona (California) | 1,545.37 mi (2,487.04 km) |
| Webster Groves to Coronado (California) | 1,553.87 mi (2,500.71 km) |
| Webster Groves to Corpus Christi (Texas) | 852.62 mi (1,372.16 km) |
| Webster Groves to Corsicana (Texas) | 565.94 mi (910.79 km) |
| Webster Groves to Cortland (New York) | 792.56 mi (1,275.51 km) |
| Webster Groves to Corvallis (Oregon) | 1,738.43 mi (2,797.73 km) |
| Webster Groves to Coshocton (Ohio) | 468.32 mi (753.68 km) |
| Webster Groves to Costa Mesa (California) | 1,568.82 mi (2,524.77 km) |
| Webster Groves to Coto de Caza (California) | 1,552.90 mi (2,499.15 km) |
