| Risca to River Ridge (Louisiana) | 4,509.66 mi (7,257.60 km) |
| Risca to Riverbank (California) | 5,217.71 mi (8,397.09 km) |
| Risca to Riverdale (Georgia) | 4,093.15 mi (6,587.28 km) |
| Risca to Riverdale (Illinois) | 3,841.73 mi (6,182.67 km) |
| Risca to Riverside (California) | 5,317.87 mi (8,558.28 km) |
| Risca to Riverside (Ohio) | 3,788.72 mi (6,097.35 km) |
| Risca to Riverton (Utah) | 4,775.38 mi (7,685.23 km) |
| Risca to Riverton (Wyoming) | 4,524.23 mi (7,281.05 km) |
| Risca to Riverview (Florida) | 4,287.55 mi (6,900.15 km) |
| Risca to Riverview (Michigan) | 3,644.61 mi (5,865.44 km) |
| Risca to Riviera Beach (Florida) | 4,245.28 mi (6,832.12 km) |
| Risca to Riviera Beach (Maryland) | 3,508.76 mi (5,646.81 km) |
| Risca to Roanoke (Virginia) | 3,734.85 mi (6,010.66 km) |
| Risca to Roanoke Rapids (North Carolina) | 3,677.73 mi (5,918.73 km) |
| Risca to Robbinsdale (Minnesota) | 3,900.56 mi (6,277.35 km) |
