| Webster Groves to Clarksdale (Mississippi) | 303.78 mi (488.89 km) |
| Webster Groves to Clarkston (Georgia) | 474.17 mi (763.11 km) |
| Webster Groves to Clarksville (Indiana) | 248.84 mi (400.47 km) |
| Webster Groves to Clarksville (Tennessee) | 215.97 mi (347.56 km) |
| Webster Groves to Clawson (Michigan) | 466.07 mi (750.06 km) |
| Webster Groves to Clay (Alabama) | 397.27 mi (639.34 km) |
| Webster Groves to Clayton (California) | 1,705.08 mi (2,744.07 km) |
| Webster Groves to Clayton (Missouri) | 4.20 mi (6.76 km) |
| Webster Groves to Clayton (North Carolina) | 685.73 mi (1,103.57 km) |
| Webster Groves to Clayton (Ohio) | 334.36 mi (538.09 km) |
| Webster Groves to Clearfield (Utah) | 1,159.52 mi (1,866.07 km) |
| Webster Groves to Clearlake (California) | 1,729.77 mi (2,783.80 km) |
| Webster Groves to Clearwater (Florida) | 853.30 mi (1,373.25 km) |
| Webster Groves to Cleburne (Texas) | 585.38 mi (942.07 km) |
| Webster Groves to Clemmons (North Carolina) | 575.18 mi (925.67 km) |
