| Portsmouth to Rosemont (California) | 5,284.03 mi (8,503.83 km) |
| Portsmouth to Rosemount (Minnesota) | 4,006.63 mi (6,448.05 km) |
| Portsmouth to Rosenberg (Texas) | 4,858.56 mi (7,819.10 km) |
| Portsmouth to Roseville (California) | 5,270.23 mi (8,481.62 km) |
| Portsmouth to Roseville (Michigan) | 3,721.62 mi (5,989.37 km) |
| Portsmouth to Roseville (Minnesota) | 3,997.47 mi (6,433.31 km) |
| Portsmouth to Rossmoor (California) | 5,451.06 mi (8,772.63 km) |
| Portsmouth to Rossville (Maryland) | 3,597.53 mi (5,789.67 km) |
| Portsmouth to Roswell (Georgia) | 4,167.32 mi (6,706.65 km) |
| Portsmouth to Roswell (New Mexico) | 4,997.08 mi (8,042.02 km) |
| Portsmouth to Round Lake (Illinois) | 3,930.38 mi (6,325.34 km) |
| Portsmouth to Round Lake Beach (Illinois) | 3,927.81 mi (6,321.21 km) |
| Portsmouth to Round Rock (Texas) | 4,881.55 mi (7,856.10 km) |
| Portsmouth to Rowland Heights (California) | 5,434.48 mi (8,745.95 km) |
| Portsmouth to Rowlett (Texas) | 4,715.24 mi (7,588.44 km) |
