| South San Francisco to Rosemead (California) | 346.81 mi (558.14 km) |
| South San Francisco to Rosemont (California) | 84.64 mi (136.21 km) |
| South San Francisco to Rosemount (Minnesota) | 1,592.69 mi (2,563.18 km) |
| South San Francisco to Rosenberg (Texas) | 1,623.14 mi (2,612.20 km) |
| South San Francisco to Roseville (California) | 97.55 mi (157.00 km) |
| South San Francisco to Roseville (Michigan) | 2,094.78 mi (3,371.22 km) |
| South San Francisco to Roseville (Minnesota) | 1,590.98 mi (2,560.43 km) |
| South San Francisco to Rossmoor (California) | 361.25 mi (581.37 km) |
| South San Francisco to Rossville (Maryland) | 2,459.87 mi (3,958.78 km) |
| South San Francisco to Roswell (Georgia) | 2,132.00 mi (3,431.13 km) |
| South San Francisco to Roswell (New Mexico) | 1,046.83 mi (1,684.71 km) |
| South San Francisco to Round Lake (Illinois) | 1,832.07 mi (2,948.43 km) |
| South San Francisco to Round Lake Beach (Illinois) | 1,833.28 mi (2,950.37 km) |
| South San Francisco to Round Rock (Texas) | 1,494.28 mi (2,404.81 km) |
| South San Francisco to Rowland Heights (California) | 359.22 mi (578.10 km) |
