| Dorchester to Romeoville (Illinois) | 3,912.98 mi (6,297.33 km) |
| Dorchester to Romulus (Michigan) | 3,700.17 mi (5,954.84 km) |
| Dorchester to Ronkonkoma (New York) | 3,342.15 mi (5,378.67 km) |
| Dorchester to Roosevelt (New York) | 3,366.50 mi (5,417.85 km) |
| Dorchester to Rosamond (California) | 5,354.36 mi (8,617.00 km) |
| Dorchester to Rosaryville (Maryland) | 3,583.62 mi (5,767.28 km) |
| Dorchester to Roscoe (Illinois) | 3,912.38 mi (6,296.37 km) |
| Dorchester to Rose Hill (Virginia) | 3,594.51 mi (5,784.81 km) |
| Dorchester to Roseburg (Oregon) | 5,041.10 mi (8,112.87 km) |
| Dorchester to Rosedale (California) | 5,357.51 mi (8,622.08 km) |
| Dorchester to Rosedale (Maryland) | 3,546.04 mi (5,706.80 km) |
| Dorchester to Roselle (Illinois) | 3,896.69 mi (6,271.12 km) |
| Dorchester to Roselle (New Jersey) | 3,395.85 mi (5,465.09 km) |
| Dorchester to Roselle Park (New Jersey) | 3,395.60 mi (5,464.69 km) |
| Dorchester to Rosemead (California) | 5,394.63 mi (8,681.82 km) |
