| San Gwann to Rockville (Maryland) | 4,795.10 mi (7,716.96 km) |
| San Gwann to Rockville Centre (New York) | 4,579.06 mi (7,369.28 km) |
| San Gwann to Rockwall (Texas) | 5,917.28 mi (9,522.94 km) |
| San Gwann to Rocky Mount (North Carolina) | 4,935.72 mi (7,943.28 km) |
| San Gwann to Rocky Point (New York) | 4,537.84 mi (7,302.94 km) |
| San Gwann to Rocky River (Ohio) | 4,922.74 mi (7,922.38 km) |
| San Gwann to Roessleville (New York) | 4,521.49 mi (7,276.64 km) |
| San Gwann to Rogers (Arkansas) | 5,666.91 mi (9,120.00 km) |
| San Gwann to Rogers (Minnesota) | 5,262.49 mi (8,469.15 km) |
| San Gwann to Rohnert Park (California) | 6,622.87 mi (10,658.48 km) |
| San Gwann to Rolla (Missouri) | 5,493.72 mi (8,841.29 km) |
| San Gwann to Rolling Meadows (Illinois) | 5,165.45 mi (8,312.99 km) |
| San Gwann to Roma (Texas) | 6,329.78 mi (10,186.79 km) |
| San Gwann to Rome (Georgia) | 5,349.02 mi (8,608.41 km) |
| San Gwann to Rome (New York) | 4,580.67 mi (7,371.87 km) |
