| Dorchester to Rosemont (California) | 5,247.19 mi (8,444.54 km) |
| Dorchester to Rosemount (Minnesota) | 3,960.45 mi (6,373.73 km) |
| Dorchester to Rosenberg (Texas) | 4,806.47 mi (7,735.26 km) |
| Dorchester to Roseville (California) | 5,233.48 mi (8,422.47 km) |
| Dorchester to Roseville (Michigan) | 3,670.81 mi (5,907.60 km) |
| Dorchester to Roseville (Minnesota) | 3,951.48 mi (6,359.28 km) |
| Dorchester to Rossmoor (California) | 5,410.29 mi (8,707.03 km) |
| Dorchester to Rossville (Maryland) | 3,543.40 mi (5,702.55 km) |
| Dorchester to Roswell (Georgia) | 4,113.27 mi (6,619.67 km) |
| Dorchester to Roswell (New Mexico) | 4,949.79 mi (7,965.92 km) |
| Dorchester to Round Lake (Illinois) | 3,881.15 mi (6,246.10 km) |
| Dorchester to Round Lake Beach (Illinois) | 3,878.59 mi (6,241.98 km) |
| Dorchester to Round Rock (Texas) | 4,830.46 mi (7,773.87 km) |
| Dorchester to Rowland Heights (California) | 5,393.70 mi (8,680.33 km) |
| Dorchester to Rowlett (Texas) | 4,664.66 mi (7,507.04 km) |
