| Boppard to Romeoville (Illinois) | 4,311.73 mi (6,939.06 km) |
| Boppard to Romulus (Michigan) | 4,106.02 mi (6,608.00 km) |
| Boppard to Ronkonkoma (New York) | 3,767.05 mi (6,062.48 km) |
| Boppard to Roosevelt (New York) | 3,791.08 mi (6,101.15 km) |
| Boppard to Rosamond (California) | 5,693.01 mi (9,162.01 km) |
| Boppard to Rosaryville (Maryland) | 4,007.94 mi (6,450.16 km) |
| Boppard to Roscoe (Illinois) | 4,307.03 mi (6,931.49 km) |
| Boppard to Rose Hill (Virginia) | 4,018.42 mi (6,467.02 km) |
| Boppard to Roseburg (Oregon) | 5,336.51 mi (8,588.28 km) |
| Boppard to Rosedale (California) | 5,691.26 mi (9,159.20 km) |
| Boppard to Rosedale (Maryland) | 3,969.64 mi (6,388.52 km) |
| Boppard to Roselle (Illinois) | 4,294.46 mi (6,911.27 km) |
| Boppard to Roselle (New Jersey) | 3,819.61 mi (6,147.07 km) |
| Boppard to Roselle Park (New Jersey) | 3,819.33 mi (6,146.61 km) |
| Boppard to Rosemead (California) | 5,735.95 mi (9,231.12 km) |
