| Westmont to Rosemead (California) | 15.34 mi (24.69 km) |
| Westmont to Rosemont (California) | 360.82 mi (580.69 km) |
| Westmont to Rosemount (Minnesota) | 1,532.12 mi (2,465.70 km) |
| Westmont to Rosenberg (Texas) | 1,352.33 mi (2,176.36 km) |
| Westmont to Roseville (California) | 373.44 mi (600.99 km) |
| Westmont to Roseville (Michigan) | 1,992.41 mi (3,206.48 km) |
| Westmont to Roseville (Minnesota) | 1,534.67 mi (2,469.81 km) |
| Westmont to Rossmoor (California) | 16.53 mi (26.60 km) |
| Westmont to Rossville (Maryland) | 2,327.53 mi (3,745.79 km) |
| Westmont to Roswell (Georgia) | 1,935.85 mi (3,115.45 km) |
| Westmont to Roswell (New Mexico) | 792.44 mi (1,275.31 km) |
| Westmont to Round Lake (Illinois) | 1,729.60 mi (2,783.52 km) |
| Westmont to Round Lake Beach (Illinois) | 1,731.25 mi (2,786.18 km) |
| Westmont to Round Rock (Texas) | 1,226.78 mi (1,974.32 km) |
| Westmont to Rowland Heights (California) | 23.62 mi (38.02 km) |
