| Risca to Rancho Cordova (California) | 5,179.00 mi (8,334.79 km) |
| Risca to Rancho Cucamonga (California) | 5,313.08 mi (8,550.58 km) |
| Risca to Rancho Mirage (California) | 5,295.26 mi (8,521.89 km) |
| Risca to Rancho Palos Verdes (California) | 5,360.29 mi (8,626.55 km) |
| Risca to Rancho San Diego (California) | 5,368.03 mi (8,639.01 km) |
| Risca to Rancho Santa Margarita (California) | 5,341.90 mi (8,596.95 km) |
| Risca to Randallstown (Maryland) | 3,510.86 mi (5,650.18 km) |
| Risca to Rantoul (Illinois) | 3,923.73 mi (6,314.63 km) |
| Risca to Rapid City (South Dakota) | 4,296.25 mi (6,914.14 km) |
| Risca to Ravenna (Ohio) | 3,611.86 mi (5,812.72 km) |
| Risca to Raymondville (Texas) | 4,995.53 mi (8,039.53 km) |
| Risca to Raymore (Missouri) | 4,238.22 mi (6,820.76 km) |
| Risca to Raytown (Missouri) | 4,229.10 mi (6,806.08 km) |
| Risca to Reading (Ohio) | 3,826.78 mi (6,158.60 km) |
| Risca to Reading (Pennsylvania) | 3,432.56 mi (5,524.18 km) |
