| Dorchester to Robertsville (New Jersey) | 3,410.42 mi (5,488.53 km) |
| Dorchester to Robinson (Texas) | 4,761.61 mi (7,663.08 km) |
| Dorchester to Robstown (Texas) | 4,971.31 mi (8,000.56 km) |
| Dorchester to Rochester (Michigan) | 3,670.34 mi (5,906.84 km) |
| Dorchester to Rochester (Minnesota) | 3,971.95 mi (6,392.24 km) |
| Dorchester to Rochester (New Hampshire) | 3,152.14 mi (5,072.88 km) |
| Dorchester to Rochester (New York) | 3,429.43 mi (5,519.14 km) |
| Dorchester to Rochester Hills (Michigan) | 3,672.74 mi (5,910.71 km) |
| Dorchester to Rock Hill (South Carolina) | 3,931.85 mi (6,327.69 km) |
| Dorchester to Rock Island (Illinois) | 4,016.74 mi (6,464.32 km) |
| Dorchester to Rock Springs (Wyoming) | 4,687.72 mi (7,544.16 km) |
| Dorchester to Rockford (Illinois) | 3,922.04 mi (6,311.91 km) |
| Dorchester to Rockledge (Florida) | 4,235.40 mi (6,816.21 km) |
| Dorchester to Rocklin (California) | 5,229.19 mi (8,415.57 km) |
| Dorchester to Rockport (Texas) | 4,934.96 mi (7,942.05 km) |
