| Pembroke Dock to Romeoville (Illinois) | 3,785.80 mi (6,092.65 km) |
| Pembroke Dock to Romulus (Michigan) | 3,573.61 mi (5,751.17 km) |
| Pembroke Dock to Ronkonkoma (New York) | 3,219.18 mi (5,180.77 km) |
| Pembroke Dock to Roosevelt (New York) | 3,243.43 mi (5,219.80 km) |
| Pembroke Dock to Rosamond (California) | 5,227.69 mi (8,413.15 km) |
| Pembroke Dock to Rosaryville (Maryland) | 3,460.51 mi (5,569.16 km) |
| Pembroke Dock to Roscoe (Illinois) | 3,784.93 mi (6,091.26 km) |
| Pembroke Dock to Rose Hill (Virginia) | 3,471.29 mi (5,586.49 km) |
| Pembroke Dock to Roseburg (Oregon) | 4,918.39 mi (7,915.39 km) |
| Pembroke Dock to Rosedale (California) | 5,231.17 mi (8,418.75 km) |
| Pembroke Dock to Rosedale (Maryland) | 3,422.72 mi (5,508.33 km) |
| Pembroke Dock to Roselle (Illinois) | 3,769.43 mi (6,066.32 km) |
| Pembroke Dock to Roselle (New Jersey) | 3,272.55 mi (5,266.65 km) |
| Pembroke Dock to Roselle Park (New Jersey) | 3,272.29 mi (5,266.24 km) |
| Pembroke Dock to Rosemead (California) | 5,267.80 mi (8,477.70 km) |
