| Boppard to Robertsville (New Jersey) | 3,834.81 mi (6,171.53 km) |
| Boppard to Robinson (Texas) | 5,167.07 mi (8,315.60 km) |
| Boppard to Robstown (Texas) | 5,382.98 mi (8,663.06 km) |
| Boppard to Rochester (Michigan) | 4,075.33 mi (6,558.61 km) |
| Boppard to Rochester (Minnesota) | 4,354.35 mi (7,007.65 km) |
| Boppard to Rochester (New Hampshire) | 3,574.05 mi (5,751.88 km) |
| Boppard to Rochester (New York) | 3,842.21 mi (6,183.44 km) |
| Boppard to Rochester Hills (Michigan) | 4,077.73 mi (6,562.47 km) |
| Boppard to Rock Hill (South Carolina) | 4,357.71 mi (7,013.06 km) |
| Boppard to Rock Island (Illinois) | 4,410.98 mi (7,098.79 km) |
| Boppard to Rock Springs (Wyoming) | 5,035.09 mi (8,103.20 km) |
| Boppard to Rockford (Illinois) | 4,317.06 mi (6,947.63 km) |
| Boppard to Rockledge (Florida) | 4,670.65 mi (7,516.69 km) |
| Boppard to Rocklin (California) | 5,545.79 mi (8,925.08 km) |
| Boppard to Rockport (Texas) | 5,347.34 mi (8,605.72 km) |
