| South Plainfield to Rome (New York) | 191.35 mi (307.94 km) |
| South Plainfield to Romeoville (Illinois) | 715.43 mi (1,151.38 km) |
| South Plainfield to Romulus (Michigan) | 477.44 mi (768.36 km) |
| South Plainfield to Ronkonkoma (New York) | 69.44 mi (111.75 km) |
| South Plainfield to Roosevelt (New York) | 44.20 mi (71.14 km) |
| South Plainfield to Rosamond (California) | 2,401.07 mi (3,864.15 km) |
| South Plainfield to Rosaryville (Maryland) | 179.00 mi (288.07 km) |
| South Plainfield to Roscoe (Illinois) | 764.92 mi (1,231.02 km) |
| South Plainfield to Rose Hill (Virginia) | 189.10 mi (304.33 km) |
| South Plainfield to Roseburg (Oregon) | 2,487.29 mi (4,002.91 km) |
| South Plainfield to Rosedale (California) | 2,439.00 mi (3,925.19 km) |
| South Plainfield to Rosedale (Maryland) | 140.46 mi (226.04 km) |
| South Plainfield to Roselle (Illinois) | 715.69 mi (1,151.79 km) |
| South Plainfield to Roselle (New Jersey) | 9.76 mi (15.71 km) |
| South Plainfield to Roselle Park (New Jersey) | 9.99 mi (16.08 km) |
