| Risca to Romeoville (Illinois) | 3,860.19 mi (6,212.38 km) |
| Risca to Romulus (Michigan) | 3,649.08 mi (5,872.63 km) |
| Risca to Ronkonkoma (New York) | 3,297.42 mi (5,306.69 km) |
| Risca to Roosevelt (New York) | 3,321.63 mi (5,345.65 km) |
| Risca to Rosamond (California) | 5,292.74 mi (8,517.84 km) |
| Risca to Rosaryville (Maryland) | 3,538.68 mi (5,694.96 km) |
| Risca to Roscoe (Illinois) | 3,858.67 mi (6,209.94 km) |
| Risca to Rose Hill (Virginia) | 3,549.40 mi (5,712.21 km) |
| Risca to Roseburg (Oregon) | 4,976.00 mi (8,008.10 km) |
| Risca to Rosedale (California) | 5,295.41 mi (8,522.14 km) |
| Risca to Rosedale (Maryland) | 3,500.79 mi (5,633.98 km) |
| Risca to Roselle (Illinois) | 3,843.67 mi (6,185.79 km) |
| Risca to Roselle (New Jersey) | 3,350.64 mi (5,392.33 km) |
| Risca to Roselle Park (New Jersey) | 3,350.37 mi (5,391.91 km) |
| Risca to Rosemead (California) | 5,333.30 mi (8,583.12 km) |
