| Potters Bar to Romeoville (Illinois) | 3,968.71 mi (6,387.01 km) |
| Potters Bar to Romulus (Michigan) | 3,759.97 mi (6,051.09 km) |
| Potters Bar to Ronkonkoma (New York) | 3,414.95 mi (5,495.83 km) |
| Potters Bar to Roosevelt (New York) | 3,439.04 mi (5,534.60 km) |
| Potters Bar to Rosamond (California) | 5,382.42 mi (8,662.16 km) |
| Potters Bar to Rosaryville (Maryland) | 3,655.98 mi (5,883.74 km) |
| Potters Bar to Roscoe (Illinois) | 3,965.82 mi (6,382.37 km) |
| Potters Bar to Rose Hill (Virginia) | 3,666.55 mi (5,900.75 km) |
| Potters Bar to Roseburg (Oregon) | 5,052.26 mi (8,130.82 km) |
| Potters Bar to Rosedale (California) | 5,383.58 mi (8,664.03 km) |
| Potters Bar to Rosedale (Maryland) | 3,617.84 mi (5,822.35 km) |
| Potters Bar to Roselle (Illinois) | 3,951.86 mi (6,359.90 km) |
| Potters Bar to Roselle (New Jersey) | 3,467.75 mi (5,580.80 km) |
| Potters Bar to Roselle Park (New Jersey) | 3,467.47 mi (5,580.36 km) |
| Potters Bar to Rosemead (California) | 5,423.82 mi (8,728.79 km) |
