| Dorchester to Rockville (Maryland) | 3,583.55 mi (5,767.16 km) |
| Dorchester to Rockville Centre (New York) | 3,369.42 mi (5,422.56 km) |
| Dorchester to Rockwall (Texas) | 4,660.17 mi (7,499.81 km) |
| Dorchester to Rocky Mount (North Carolina) | 3,749.22 mi (6,033.78 km) |
| Dorchester to Rocky Point (New York) | 3,328.81 mi (5,357.21 km) |
| Dorchester to Rocky River (Ohio) | 3,672.33 mi (5,910.04 km) |
| Dorchester to Roessleville (New York) | 3,292.55 mi (5,298.85 km) |
| Dorchester to Rogers (Arkansas) | 4,400.99 mi (7,082.71 km) |
| Dorchester to Rogers (Minnesota) | 3,959.26 mi (6,371.81 km) |
| Dorchester to Rohnert Park (California) | 5,299.70 mi (8,529.04 km) |
| Dorchester to Rolla (Missouri) | 4,228.11 mi (6,804.48 km) |
| Dorchester to Rolling Meadows (Illinois) | 3,890.10 mi (6,260.50 km) |
| Dorchester to Roma (Texas) | 5,097.08 mi (8,202.96 km) |
| Dorchester to Rome (Georgia) | 4,137.19 mi (6,658.17 km) |
| Dorchester to Rome (New York) | 3,340.68 mi (5,376.30 km) |
