| Risca to Robertsville (New Jersey) | 3,365.48 mi (5,416.22 km) |
| Risca to Robinson (Texas) | 4,710.68 mi (7,581.10 km) |
| Risca to Robstown (Texas) | 4,922.14 mi (7,921.42 km) |
| Risca to Rochester (Michigan) | 3,619.02 mi (5,824.25 km) |
| Risca to Rochester (Minnesota) | 3,915.85 mi (6,301.96 km) |
| Risca to Rochester (New Hampshire) | 3,106.11 mi (4,998.81 km) |
| Risca to Rochester (New York) | 3,380.26 mi (5,440.01 km) |
| Risca to Rochester Hills (Michigan) | 3,621.42 mi (5,828.11 km) |
| Risca to Rock Hill (South Carolina) | 3,887.65 mi (6,256.56 km) |
| Risca to Rock Island (Illinois) | 3,962.97 mi (6,377.79 km) |
| Risca to Rock Springs (Wyoming) | 4,626.86 mi (7,446.22 km) |
| Risca to Rockford (Illinois) | 3,868.41 mi (6,225.60 km) |
| Risca to Rockledge (Florida) | 4,196.59 mi (6,753.76 km) |
| Risca to Rocklin (California) | 5,165.58 mi (8,313.19 km) |
| Risca to Rockport (Texas) | 4,886.00 mi (7,863.25 km) |
