| Santa Monica to Rome (New York) | 2,377.88 mi (3,826.83 km) |
| Santa Monica to Romeoville (Illinois) | 1,729.00 mi (2,782.56 km) |
| Santa Monica to Romulus (Michigan) | 1,975.33 mi (3,178.99 km) |
| Santa Monica to Ronkonkoma (New York) | 2,504.35 mi (4,030.37 km) |
| Santa Monica to Roosevelt (New York) | 2,481.00 mi (3,992.78 km) |
| Santa Monica to Rosamond (California) | 60.13 mi (96.77 km) |
| Santa Monica to Rosaryville (Maryland) | 2,319.62 mi (3,733.06 km) |
| Santa Monica to Roscoe (Illinois) | 1,691.50 mi (2,722.20 km) |
| Santa Monica to Rose Hill (Virginia) | 2,304.37 mi (3,708.52 km) |
| Santa Monica to Roseburg (Oregon) | 687.54 mi (1,106.49 km) |
| Santa Monica to Rosedale (California) | 102.91 mi (165.62 km) |
| Santa Monica to Rosedale (Maryland) | 2,333.47 mi (3,755.35 km) |
| Santa Monica to Roselle (Illinois) | 1,733.09 mi (2,789.14 km) |
| Santa Monica to Roselle (New Jersey) | 2,445.77 mi (3,936.08 km) |
| Santa Monica to Roselle Park (New Jersey) | 2,445.36 mi (3,935.43 km) |
