| South Plainfield to Reading (Pennsylvania) | 81.10 mi (130.52 km) |
| South Plainfield to Red Bank (New Jersey) | 24.09 mi (38.77 km) |
| South Plainfield to Red Bank (Tennessee) | 702.71 mi (1,130.90 km) |
| South Plainfield to Red Bluff (California) | 2,485.76 mi (4,000.44 km) |
| South Plainfield to Red Hill (South Carolina) | 533.25 mi (858.18 km) |
| South Plainfield to Red Oak (Texas) | 1,355.68 mi (2,181.76 km) |
| South Plainfield to Red Wing (Minnesota) | 963.55 mi (1,550.68 km) |
| South Plainfield to Redan (Georgia) | 714.19 mi (1,149.38 km) |
| South Plainfield to Redding (California) | 2,484.28 mi (3,998.07 km) |
| South Plainfield to Redland (Maryland) | 175.76 mi (282.86 km) |
| South Plainfield to Redlands (California) | 2,368.60 mi (3,811.89 km) |
| South Plainfield to Redmond (Oregon) | 2,366.58 mi (3,808.64 km) |
| South Plainfield to Redmond (Washington) | 2,376.99 mi (3,825.39 km) |
| South Plainfield to Redondo Beach (California) | 2,437.17 mi (3,922.24 km) |
| South Plainfield to Redwood City (California) | 2,543.04 mi (4,092.62 km) |
