| Herndon to Rosemont (California) | 2,345.56 mi (3,774.82 km) |
| Herndon to Rosemount (Minnesota) | 898.14 mi (1,445.41 km) |
| Herndon to Rosenberg (Texas) | 1,234.24 mi (1,986.31 km) |
| Herndon to Roseville (California) | 2,339.80 mi (3,765.54 km) |
| Herndon to Roseville (Michigan) | 379.54 mi (610.81 km) |
| Herndon to Roseville (Minnesota) | 908.94 mi (1,462.79 km) |
| Herndon to Rossmoor (California) | 2,272.74 mi (3,657.63 km) |
| Herndon to Rossville (Maryland) | 55.61 mi (89.50 km) |
| Herndon to Roswell (Georgia) | 515.14 mi (829.04 km) |
| Herndon to Roswell (New Mexico) | 1,556.15 mi (2,504.38 km) |
| Herndon to Round Lake (Illinois) | 607.73 mi (978.04 km) |
| Herndon to Round Lake Beach (Illinois) | 607.34 mi (977.41 km) |
| Herndon to Round Rock (Texas) | 1,286.51 mi (2,070.44 km) |
| Herndon to Rowland Heights (California) | 2,258.11 mi (3,634.07 km) |
| Herndon to Rowlett (Texas) | 1,147.82 mi (1,847.24 km) |
