| Webster Groves to Crawfordsville (Indiana) | 210.38 mi (338.57 km) |
| Webster Groves to Crest Hill (Illinois) | 237.90 mi (382.86 km) |
| Webster Groves to Crestview (Florida) | 582.42 mi (937.31 km) |
| Webster Groves to Crestwood (Illinois) | 252.46 mi (406.30 km) |
| Webster Groves to Crestwood (Missouri) | 2.42 mi (3.90 km) |
| Webster Groves to Creve Coeur (Missouri) | 7.07 mi (11.38 km) |
| Webster Groves to Crofton (Maryland) | 736.22 mi (1,184.83 km) |
| Webster Groves to Crossville (Tennessee) | 344.64 mi (554.65 km) |
| Webster Groves to Crowley (Louisiana) | 589.56 mi (948.81 km) |
| Webster Groves to Crowley (Texas) | 571.68 mi (920.04 km) |
| Webster Groves to Crown Point (Indiana) | 252.02 mi (405.58 km) |
| Webster Groves to Crystal (Minnesota) | 471.74 mi (759.20 km) |
| Webster Groves to Crystal Lake (Illinois) | 273.42 mi (440.03 km) |
| Webster Groves to Cudahy (California) | 1,576.31 mi (2,536.82 km) |
| Webster Groves to Cudahy (Wisconsin) | 328.19 mi (528.17 km) |
