| Risca to Rosemont (California) | 5,183.61 mi (8,342.22 km) |
| Risca to Rosemount (Minnesota) | 3,903.70 mi (6,282.40 km) |
| Risca to Rosenberg (Texas) | 4,757.34 mi (7,656.19 km) |
| Risca to Roseville (California) | 5,169.85 mi (8,320.08 km) |
| Risca to Roseville (Michigan) | 3,619.71 mi (5,825.36 km) |
| Risca to Roseville (Minnesota) | 3,894.54 mi (6,267.66 km) |
| Risca to Rossmoor (California) | 5,349.05 mi (8,608.46 km) |
| Risca to Rossville (Maryland) | 3,498.14 mi (5,629.71 km) |
| Risca to Roswell (Georgia) | 4,067.79 mi (6,546.48 km) |
| Risca to Roswell (New Mexico) | 4,894.20 mi (7,876.46 km) |
| Risca to Round Lake (Illinois) | 3,827.88 mi (6,160.37 km) |
| Risca to Round Lake Beach (Illinois) | 3,825.30 mi (6,156.23 km) |
| Risca to Round Rock (Texas) | 4,779.75 mi (7,692.26 km) |
| Risca to Rowland Heights (California) | 5,332.46 mi (8,581.77 km) |
| Risca to Rowlett (Texas) | 4,613.19 mi (7,424.21 km) |
