| Boppard to River Ridge (Louisiana) | 4,976.77 mi (8,009.34 km) |
| Boppard to Riverbank (California) | 5,601.85 mi (9,015.31 km) |
| Boppard to Riverdale (Georgia) | 4,561.88 mi (7,341.64 km) |
| Boppard to Riverdale (Illinois) | 4,293.94 mi (6,910.42 km) |
| Boppard to Riverside (California) | 5,722.93 mi (9,210.17 km) |
| Boppard to Riverside (Ohio) | 4,249.29 mi (6,838.57 km) |
| Boppard to Riverton (Utah) | 5,179.20 mi (8,335.11 km) |
| Boppard to Riverton (Wyoming) | 4,930.44 mi (7,934.77 km) |
| Boppard to Riverview (Florida) | 4,761.34 mi (7,662.64 km) |
| Boppard to Riverview (Michigan) | 4,101.88 mi (6,601.34 km) |
| Boppard to Riviera Beach (Florida) | 4,719.68 mi (7,595.59 km) |
| Boppard to Riviera Beach (Maryland) | 3,977.79 mi (6,401.64 km) |
| Boppard to Roanoke (Virginia) | 4,203.31 mi (6,764.57 km) |
| Boppard to Roanoke Rapids (North Carolina) | 4,148.74 mi (6,676.75 km) |
| Boppard to Robbinsdale (Minnesota) | 4,334.71 mi (6,976.05 km) |
