| Webster Groves to Ramsey (New Jersey) | 875.58 mi (1,409.11 km) |
| Webster Groves to Rancho Cordova (California) | 1,660.91 mi (2,672.97 km) |
| Webster Groves to Rancho Cucamonga (California) | 1,539.32 mi (2,477.30 km) |
| Webster Groves to Rancho Mirage (California) | 1,486.45 mi (2,392.20 km) |
| Webster Groves to Rancho Palos Verdes (California) | 1,590.94 mi (2,560.37 km) |
| Webster Groves to Rancho San Diego (California) | 1,538.36 mi (2,475.75 km) |
| Webster Groves to Rancho Santa Margarita (California) | 1,552.71 mi (2,498.85 km) |
| Webster Groves to Randallstown (Maryland) | 729.23 mi (1,173.58 km) |
| Webster Groves to Rantoul (Illinois) | 166.84 mi (268.50 km) |
| Webster Groves to Rapid City (South Dakota) | 766.35 mi (1,233.31 km) |
| Webster Groves to Ravenna (Ohio) | 514.58 mi (828.13 km) |
| Webster Groves to Raymondville (Texas) | 941.01 mi (1,514.42 km) |
| Webster Groves to Raymore (Missouri) | 221.79 mi (356.94 km) |
| Webster Groves to Raytown (Missouri) | 223.09 mi (359.03 km) |
| Webster Groves to Reading (Ohio) | 321.33 mi (517.14 km) |
