| Risca to Red Bank (New Jersey) | 3,355.77 mi (5,400.59 km) |
| Risca to Red Bank (Tennessee) | 4,054.89 mi (6,525.72 km) |
| Risca to Red Bluff (California) | 5,117.69 mi (8,236.13 km) |
| Risca to Red Hill (South Carolina) | 3,858.96 mi (6,210.40 km) |
| Risca to Red Oak (Texas) | 4,642.64 mi (7,471.60 km) |
| Risca to Red Wing (Minnesota) | 3,894.36 mi (6,267.37 km) |
| Risca to Redan (Georgia) | 4,074.56 mi (6,557.37 km) |
| Risca to Redding (California) | 5,098.76 mi (8,205.66 km) |
| Risca to Redland (Maryland) | 3,535.54 mi (5,689.91 km) |
| Risca to Redlands (California) | 5,304.05 mi (8,536.05 km) |
| Risca to Redmond (Oregon) | 4,855.13 mi (7,813.57 km) |
| Risca to Redmond (Washington) | 4,689.84 mi (7,547.56 km) |
| Risca to Redondo Beach (California) | 5,354.94 mi (8,617.94 km) |
| Risca to Redwood City (California) | 5,269.96 mi (8,481.18 km) |
| Risca to Reedley (California) | 5,234.65 mi (8,424.36 km) |
